release v0.3.6

Windows Terminal fullscreen and keybinding improvements.

- Add -F flag to wt.exe to start in fullscreen mode
- Disable 'q' keybinding in panel when using wt mode — prevents accidental quit (ctrl+c remains available)

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,38 @@
+---
+name: Bug Report
+about: Report a bug to help us improve kctl-tui
+title: ""
+labels: bug
+assignees: ""
+---
+
+## Describe the Bug
+
+A clear description of what the bug is.
+
+## Steps to Reproduce
+
+1. Run `kctl-tui ...`
+2. Select '...'
+3. See error
+
+## Expected Behavior
+
+What you expected to happen.
+
+## Actual Behavior
+
+What actually happened.
+
+## Environment
+
+- OS: [e.g. Windows 11, Ubuntu 24.04, macOS 15]
+- Go version: [e.g. 1.22.5]
+- kctl-tui version: [e.g. v0.2.0]
+- kubectl version: [e.g. v1.30.0]
+- tmux/psmux version: [e.g. tmux 3.4, psmux latest]
+- Terminal: [e.g. Windows Terminal, iTerm2, GNOME Terminal]
+
+## Additional Context
+
+Config file (without secrets), error logs, or screenshots.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,23 @@
+---
+name: Feature Request
+about: Suggest a new feature or improvement
+title: ""
+labels: enhancement
+assignees: ""
+---
+
+## Problem
+
+What problem does this feature solve?
+
+## Proposed Solution
+
+Describe the solution you'd like.
+
+## Alternatives Considered
+
+Any alternative solutions or workarounds you considered.
+
+## Additional Context
+
+Any mockups, examples, or references.

.github/pull_request_template.md

@@ -0,0 +1,23 @@
+## Summary
+
+Brief description of what this PR does.
+
+## Changes
+
+- ...
+
+## Related Issues
+
+Closes #
+
+## Testing
+
+- [ ] `go vet ./...` passes
+- [ ] `go test ./...` passes
+- [ ] Manually tested on [OS]
+
+## Checklist
+
+- [ ] Code follows existing style
+- [ ] No new comments added (unless necessary)
+- [ ] CHANGELOG.md updated (if applicable)

.github/workflows/build.yml

@@ -15,11 +15,11 @@ jobs:
     name: Test
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@v7
         with:
-          go-version: "1.22"
+          go-version: "1.25"
           cache: false
 
       - name: Tidy dependencies (generates/updates go.sum)
@@ -40,11 +40,11 @@ jobs:
         goos: [linux, windows, darwin]
         goarch: [amd64, arm64]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@v7
         with:
-          go-version: "1.22"
+          go-version: "1.25"
           cache: false
 
       - name: Tidy dependencies (generates/updates go.sum)
@@ -64,7 +64,7 @@ jobs:
           echo "Built $out"
 
       - name: Upload artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: kctl-tui-${{ matrix.goos }}-${{ matrix.goarch }}
           path: dist/*
@@ -75,13 +75,27 @@ jobs:
     needs: build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/download-artifact@v4
+      - uses: actions/checkout@v7
+        with:
+          fetch-depth: 0
+
+      - name: Extract release notes from commit message
+        id: release
+        run: |
+          MSG=$(git log -1 --pretty=format:"%B" "${{ github.sha }}")
+          {
+            echo 'body<<EOF'
+            echo "$MSG"
+            echo 'EOF'
+          } >> "$GITHUB_OUTPUT"
+
+      - uses: actions/download-artifact@v8
         with:
           path: dist
           merge-multiple: true
 
       - name: Create release and upload binaries
-        uses: softprops/action-gh-release@v2
+        uses: softprops/action-gh-release@v3
         with:
+          body: ${{ steps.release.outputs.body }}
           files: dist/*
-          generate_release_notes: true

.moonweb.yml

@@ -0,0 +1,6 @@
+title: "kctl-tui"
+emoji: "🐳"
+category: code
+subcategory: "Dev Tools"
+status: active
+stack: [Go, Bubbletea, Bubbles, Lipgloss, YAML]

.opencode/command/create-release.md

@@ -0,0 +1,36 @@
+---
+description: Create and push a release tag (e.g. /create-release 1.0.0)
+---
+
+Create a release tag and push it to origin. The GitHub Action will automatically build for all platforms and create the GitHub Release.
+
+## Steps
+
+1. Validate the version argument ($ARGUMENTS):
+   - Must be provided, otherwise show error and stop
+   - Must match semver format (e.g. 1.0.0, 0.9.1, 2.0.0-beta.1)
+
+2. Check for uncommitted changes:
+   - Run `git status --porcelain`
+   - If any output, warn the user and stop (commit first)
+
+3. Analyze changes since last release:
+   - Run `git log --oneline $(git describe --tags --abbrev=0 HEAD)..HEAD` to list all commits
+   - Read the changed files to understand context
+   - Write a concise, well-structured release summary in English with:
+     - A one-line overview
+     - Bullet points for each notable change (features, fixes, breaking changes)
+     - Keep it developer-friendly, no fluff
+
+4. Create release commit with the summary as message:
+   - Run `git commit --allow-empty -m "release v$ARGUMENTS\n\n<summary>"`
+   - The commit message IS the release notes — the GitHub Action picks it up automatically
+
+5. Create annotated tag on that commit:
+   - Run `git tag -a v$ARGUMENTS -m "Release v$ARGUMENTS"`
+
+6. Push commit and tag separately (pushing both in one step causes GitHub Actions to skip the release workflow):
+   - Run `git push origin main` (or current branch)
+   - Run `git push origin v$ARGUMENTS`
+
+7. Confirm success with the version number

CHANGELOG.md

@@ -0,0 +1,65 @@
+# Changelog
+
+All notable changes to kctl-tui will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/).
+
+## [Unreleased]
+
+### Added
+- `kctl-tui update` — self-update command that downloads the latest release
+  from GitHub and replaces the running binary
+- Automatic update check on startup — prompts to update interactively when
+  a newer version is available
+
+## [0.2.0] - 2026-08-09
+
+### Added
+- **Windows support** via [psmux](https://github.com/marlocarlo/psmux) as tmux-compatible multiplexer
+- `install.ps1` PowerShell install script for Windows
+- `--help` flag with full usage documentation
+- `--version` / `-v` flag (set via `-ldflags` at build time)
+- `kctl-tui doctor` command to verify tools, config and cluster connectivity
+- `kctl-tui config check` command to validate `~/.kctl-tui/config.yaml`
+- `--verbose` flag for debug logging of all kubectl/aws commands to stderr
+- Binary secret value detection (`IsBinary`) — base64 or non-UTF-8 content is flagged
+- ExternalSecret name validation before force-sync
+- `CheckTool()` and `CheckAWSAuth()` helpers for pre-flight checks
+- Diff table scroll support (j/k, up/down arrows)
+- `--command pods` flag for k9s to start directly in pod view
+- `--namespace` flag for k9s (Windows compatibility)
+
+### Fixed
+- Tmux session cleanup: stale sessions are killed before creating new ones
+- Panel path: uses `os.Executable()` instead of PATH lookup for correct binary
+- k9s on Windows: `--namespace` instead of `-n`, direct pods view
+- `--help` always shows usage and exits (no fallthrough to TUI)
+- Unknown subcommands show error message + usage (exit 1)
+- Panel quit: properly closes tmux session and exits
+- Bubbles list filter disabled to prevent stuck filter state after tmux return
+
+### Changed
+- Config uses `k8s_secret_name_template` for Kubernetes secret names (separate from AWS `secret_name_template`)
+- Contexts resolved via template (`context_template`) instead of live kubectl discovery
+- Panel redesigned: env-first menu (quit/beta/prod) with secrets sync + redeploy
+- Full-mode navigation starts at team selection with default context
+- `tea.ExecProcess` only used for `tmux attach` — setup commands run synchronously
+
+### Removed
+- Context-pair logic (superseded by env-template based context resolution)
+- Live kubectl discovery (superseded by config templates)
+
+## [0.1.0] - 2026-07-XX
+
+### Added
+- Initial release with Bubble Tea TUI
+- 3-pane tmux orchestration (control panel + 2x k9s)
+- Team/namespace navigation with kubectl context switching
+- Panel mode with redeploy and secrets diff/force-sync
+- AWS SSO integration with interactive login prompt
+- CI/CD pipeline with Go build and release
+- Linux/macOS install script
+
+[Unreleased]: https://github.com/skoelle/kctl-tui/compare/v0.2.0...HEAD
+[0.2.0]: https://github.com/skoelle/kctl-tui/compare/v0.1.0...v0.2.0
+[0.1.0]: https://github.com/skoelle/kctl-tui/releases/tag/v0.1.0

CONTRIBUTING.md

@@ -0,0 +1,95 @@
+# Contributing to kctl-tui
+
+Thanks for your interest in contributing! This document explains how to get
+started.
+
+## Development Setup
+
+```bash
+git clone https://github.com/skoelle/kctl-tui.git
+cd kctl-tui
+go mod download
+```
+
+### Prerequisites
+
+- Go 1.25+
+- kubectl, k9s, tmux (or psmux on Windows)
+- An active Kubernetes cluster for integration testing
+
+### Running Locally
+
+```bash
+go run ./cmd/kctl-tui
+```
+
+### Building
+
+```bash
+go build -o kctl-tui ./cmd/kctl-tui
+```
+
+### With Version Tag
+
+```bash
+go build -ldflags "-X main.version=v0.2.0" -o kctl-tui ./cmd/kctl-tui
+```
+
+## Project Structure
+
+```
+cmd/kctl-tui/          Entry points (main, full mode, panel mode)
+internal/config/       YAML config loading and template resolution
+internal/kctl/         Pure logic (secret diffing, template engine)
+internal/kubeexec/     kubectl/aws/tmux wrappers (side effects only)
+```
+
+### Architecture Rules
+
+- **Pure logic** goes into `internal/kctl` or `internal/config` — no exec, no I/O.
+- **Side effects** (running kubectl, aws, tmux) go into `internal/kubeexec`.
+- **UI** lives in `cmd/kctl-tui/` — Bubble Tea models, views, handlers.
+- Unit tests cover pure logic only. Side-effect packages are tested via
+  integration/manual tests.
+
+## Testing
+
+```bash
+go vet ./...       # static analysis
+go test ./...      # unit tests
+```
+
+There are no integration tests yet. Manual testing against a real cluster is
+expected for UI and kubeexec changes.
+
+## Code Style
+
+- Standard Go formatting (`gofmt`).
+- No comments unless the logic is non-obvious.
+- Error messages should be actionable — tell the user what to fix.
+- Log commands with `kubeexec.VerboseLog()` when `--verbose` is active.
+
+## Commits
+
+- One logical change per commit.
+- Imperative mood in commit messages ("Add ...", "Fix ...", "Remove ...").
+- No co-authors in commits.
+
+## Pull Requests
+
+1. Fork the repo and create a feature branch.
+2. Make your changes following the style guide above.
+3. Run `go vet` and `go test`.
+4. Open a PR against `main` with a clear description of what changed and why.
+5. Reference any related issues.
+
+## Issues
+
+- Use the provided issue templates.
+- Include your OS, Go version, and kctl-tui version.
+- For bugs: steps to reproduce, expected vs actual behavior.
+
+## License
+
+By contributing, you agree that your contributions will be licensed under the
+MIT License.

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2026 Stefan Koelle
+Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

PLAN.md

@@ -14,7 +14,7 @@ is still open. For the full requirements, see [SPEC.md](SPEC.md).
       API is unreachable.
 - [x] `README.md`, `config.example.yaml`.
 
-## Phase 1 — Core logic + navigation (done, initial version)
+## Phase 1 — Core logic + navigation (done)
 
 - [x] `internal/kctl`: pure, unit-tested logic —
       template resolution (`ResolveTemplate`), namespace/label filtering
@@ -49,41 +49,109 @@ is still open. For the full requirements, see [SPEC.md](SPEC.md).
         **whole secret** (one ExternalSecret annotation).
       - `Esc` closes the whole tmux session (`tmux kill-session`).
 
-## Phase 2 — Hardening (open)
+## Phase 2 — Hardening (done)
 
-- [ ] Handle non-JSON AWS secrets and Kubernetes secrets with binary
+- [x] Handle non-JSON AWS secrets and Kubernetes secrets with binary
-      (non-UTF8) values more gracefully in the diff table (currently
+      (non-UTF8) values more gracefully in the diff table.
-      falls back to a single "value" key or may render oddly).
 - [ ] Add integration-style tests against a local `kind`/`k3d` cluster in
       CI for the `kubeexec` wrappers currently excluded from automated
-      testing.
+      testing. *(Deferred — superseded by client-go in v0.3.0)*
-- [ ] Input validation for the free-text steps in "panel" mode (empty
+- [x] Input validation for the free-text steps in "panel" mode.
-      region/secret name, invalid characters).
+- [x] Graceful handling when `tmux`, `k9s`, or `aws` are not installed.
-- [ ] Graceful handling when `tmux`, `k9s`, or `aws` are not installed
+- [x] Structured logging / `--verbose` flag for troubleshooting failed
-      (currently surfaces the raw exec error).
-- [ ] Structured logging / `--verbose` flag for troubleshooting failed
       `kubectl`/`aws` calls.
-- [ ] Paginate/scroll the secrets diff table for secrets with many fields
+- [x] Paginate/scroll the secrets diff table for secrets with many fields.
-      instead of relying on terminal wrapping.
 
 ## Phase 3 — Windows-native support (done)
 
-- [x] Windows support via [psmux](https://github.com/marlocarlo/psmux) —
+- [x] Windows support via [psmux](https://github.com/marlocarlo/psmux).
-      a native, tmux-compatible terminal multiplexer. kctl-tui works
-      without code changes; `CheckTool("tmux")` error message includes
-      Windows-specific install hint.
 - [x] `install.ps1` — PowerShell install script for Windows.
 - [x] Updated README and SPEC with Windows + psmux setup instructions.
 
-## Phase 4 — Nice-to-haves (open, not committed)
+## Phase 4 — Nice-to-haves (done for v0.2.0)
 
 - [x] `--version` flag — prints version, set via `-ldflags` at build time.
 - [x] Config validation command (`kctl-tui config check`) — validates
       required fields and shows a resolved context example.
-- [ ] Optional direct use of `client-go` instead of shelling out to
+- [x] `kctl-tui doctor` — health check for tools, config, and connectivity.
-      `kubectl`, for faster context/namespace/label queries.
+- [x] `--help` flag with full usage documentation.
-- [ ] Homebrew tap / `scoop` manifest as additional install options
+- [x] CHANGELOG.md, CONTRIBUTING.md, GitHub Issue/PR templates.
-      alongside `install.sh`.
+
+## Phase 5 — Self-update (done)
+
+- [x] `kctl-tui update` — self-update command using `go-selfupdate` library.
+      Downloads the matching OS/arch asset from GitHub Releases and replaces
+      the running binary atomically.
+- [x] Interactive update check on startup — queries GitHub Releases in the
+      background, prompts the user to update when a newer version is found.
+
+---
+
+## Bugfix Sprint — between v0.2.0 and v0.3.0
+
+- [ ] **Dead code** `cmd/kctl-tui/main.go:47-49` — empty
+      `if len(filtered) == 0` block with comment. Remove.
+- [ ] **Redundant logic** `internal/kctl/diff.go:60-63` —
+      `if lb || rb { match = l == r }` is identical to the line above.
+      Either dead or misunderstood.
+- [ ] **Diff-scroll is a no-op** `cmd/kctl-tui/panel.go:398-413` —
+      `renderDiffTable` is always called with `visibleHeight=0`, so
+      `end = len(entries)` is always true. j/k/arrows only change the
+      offset text but the table is always fully rendered. The CHANGELOG
+      promises "Diff table scroll support" but the feature is incomplete.
+- [ ] **README duplicate** `README.md:98-102` — "This downloads the latest
+      release binary..." appears twice (once "to your PATH", once
+      "to /usr/local/bin"). Edit leftover.
+- [ ] **go mod tidy in CI** `build.yml` — mutates `go.sum` during the
+      build instead of enforcing a tidy check. If someone forgets to tidy,
+      it's silently fixed instead of blocking the PR.
+- [ ] **Bubbles filter disabled** `full.go:53`, `panel.go:87` — workaround
+      for the stuck-filter bug (commit 7db58b6). Users can no longer
+      type-to-filter. Worth restoring with a proper fix later.
+- [ ] **Kleinkram:**
+  - `fmt.Errorf("%s", msg)` → `errors.New(msg)` in `kubeexec.go:41`
+  - `helpers.go` is a pointless 1:1 passthrough to the `kctl` package
+  - `IsBinary` also marks UTF-8 special chars (>0x7F) as "binary"
+
+- [ ] **SECURITY.md** — fehlt, besonders wichtig für ein Tool mit
+      Secret-Workflows.
+- [ ] **dependabot.yml** — automatische Dependency-Updates.
+- [ ] **Checksummen für Release-Assets** — CI erzeugt Binaries aber keine
+      `.sha256`-Dateien; für `curl | bash`-Install wichtig.
+- [ ] **Makefile / justfile** — Build/Test/Vet-Komfort.
+- [ ] **golangci-lint** — `go vet` allein ist dünn; optional aber empfohlen.
+- [ ] **PLAN.md aufräumen** — erledigte Phasen als „Done" markieren,
+      offene Items konsolidieren.
+
+---
+
+## Roadmap
+
+### v0.3.0 — client-go integration
+
+Replace kubectl shell-outs with direct API calls via `client-go`.
+
+- [ ] Add `internal/kubeclient` package using `client-go` for:
+      - Context/namespace/label queries (faster than kubectl JSON parsing)
+      - Deployment list and rollout restart/status
+      - Secret fetch (AWS Secrets Manager via SDK, K8s secrets via API)
+      - ExternalSecret annotation update
+- [ ] Keep `internal/kubeexec` as fallback for operations not yet
+      covered by `client-go`
+- [ ] Remove `kind`/`k3d` integration test plan (client-go has its own
+      test coverage)
+- [ ] Add unit tests with `fake.Clientset` for the new package
+
+### v1.0 — Stable release
+
+Production-ready with package manager support and documentation.
+
+- [ ] Homebrew tap (`skoelle/homebrew-tap`) with `kctl-tui` formula
+- [ ] Scoop manifest (`skoelle/scoop-bucket`) for Windows
+- [ ] Full test coverage for `internal/kubeclient`
+- [ ] Documentation: architecture diagram, config reference, troubleshooting
+- [ ] Semantic versioning policy documented
+- [ ] Deprecation policy for config schema changes
 
 ## Notes for contributors
 

README.md

@@ -1,40 +1,40 @@
-# kctl-tui
+# 🚀 kctl-tui
 
 A small terminal entry point for everyday Kubernetes work: pick a context
 and a namespace once, then drive rollout restarts and an AWS Secrets
 Manager <-> Kubernetes Secret diff/force-sync per environment from one
 place instead of retyping long `kubectl` commands.
 
-## Why
+## ✨ Why
 
 Working with several clusters, many namespaces per team, and paired
 environments (e.g. beta/prod) quickly turns into a lot of repeated typing
 with plain `kubectl`/`k9s`. kctl-tui adds:
 
-- A guided **context -> team -> namespace** selection that starts
+- 🎯 A guided **context -> team -> namespace** selection that starts
   directly at team selection (using a configured default context), with
   the context screen just one `Esc` away.
-- Namespace grouping by an arbitrary, configurable **label** instead of
+- 🏷️ Namespace grouping by an arbitrary, configurable **label** instead of
   scrolling through every namespace in the cluster.
-- A **3-pane view** (via `tmux`): one control pane for actions, two status
+- 🖥️ A **3-pane view** (via `tmux`): one control pane for actions, two status
   panes running `k9s` for the current namespace across your two
   configured environments (e.g. beta/prod), shown side by side.
-- A control-pane menu organized **by environment**: pick beta or prod,
+- 📋 A control-pane menu organized **by environment**: pick beta or prod,
   then Secrets sync or Redeploy for that environment specifically.
-- AWS Secrets Manager secret IDs and Kubernetes context names/ARNs are
+- 🔐 AWS Secrets Manager secret IDs and Kubernetes context names/ARNs are
   **computed from configurable templates** (namespace + environment),
   instead of listing secrets or discovering contexts live from
   `kubectl`/`aws-cli`.
-- A guided **AWS Secrets Manager vs. Kubernetes Secret** comparison of
+- 🔄 A guided **AWS Secrets Manager vs. Kubernetes Secret** comparison of
   every field at once, with a force-sync request for the whole secret if
   anything differs.
-- An **AWS auth check** before the secrets workflow, offering to run your
+- 🔑 An **AWS auth check** before the secrets workflow, offering to run your
   configured SSO login command interactively if the session has expired.
 
 See [SPEC.md](SPEC.md) for the full requirements and design rationale, and
 [PLAN.md](PLAN.md) for the implementation roadmap and current status.
 
-## How it works
+## 🔧 How it works
 
 ```
 +--------------------------------------------------+
@@ -42,9 +42,9 @@ See [SPEC.md](SPEC.md) for the full requirements and design rationale, and
 |  -> 1) Quit  2) beta  3) prod                     |
 |     each with: a) Secrets sync  b) Redeploy       |
 +--------------------------------------------------+
-|  k9s --context <resolved beta context>  -n <ns>   |
+|  k9s --context <resolved beta context> --namespace <ns> --command pods   |
 +--------------------------------------------------+
-|  k9s --context <resolved prod context>  -n <ns>   |
+|  k9s --context <resolved prod context> --namespace <ns> --command pods   |
 +--------------------------------------------------+
 ```
 
@@ -61,14 +61,14 @@ See [SPEC.md](SPEC.md) for the full requirements and design rationale, and
    -> environment menu -> closes the whole tmux session, including both
    `k9s` panes, and returns you to namespace selection).
 
-## Requirements
+## 📋 Requirements
 
-- `kubectl`, configured with access to your cluster(s) (the actual
+- 🐳 `kubectl`, configured with access to your cluster(s) (the actual
   context names/ARNs are resolved from your `context_template`, see
   Configuration below - they must already exist in your kubeconfig, e.g.
   added via `aws eks update-kubeconfig`).
-- `k9s` (used for the two status panes).
+- 👀 `k9s` (used for the two status panes).
-- `tmux` (used for the 3-pane layout). On **Linux/macOS**, install
+- 📺 `tmux` (used for the 3-pane layout). On **Linux/macOS**, install
   `tmux` via your package manager. On **Windows**, install
   [psmux](https://github.com/marlocarlo/psmux) — a native,
   tmux-compatible terminal multiplexer:
@@ -78,30 +78,27 @@ See [SPEC.md](SPEC.md) for the full requirements and design rationale, and
   cargo install psmux
   ```
   psmux provides a `tmux` command, so kctl-tui works without changes.
-- `aws` CLI, configured with credentials, only needed for the secrets
+- ☁️ `aws` CLI, configured with credentials, only needed for the secrets
   workflow.
 
-## Installation
+## 📥 Installation
 
-### Quick install (Linux/macOS/WSL)
+### 🚀 Quick install (Linux/macOS/WSL)
 
 ```bash
 curl -fsSL https://raw.githubusercontent.com/skoelle/kctl-tui/main/install.sh | bash
 ```
 
-### Quick install (Windows)
+### 🪟 Quick install (Windows)
 
 ```powershell
 irm https://raw.githubusercontent.com/skoelle/kctl-tui/main/install.ps1 | iex
 ```
 
-This downloads the latest release binary for your architecture from
-GitHub Releases and installs it to your PATH.
-
 This downloads the latest release binary for your OS/architecture from
 GitHub Releases and installs it to `/usr/local/bin/kctl-tui`.
 
-### From source
+### 🛠️ From source
 
 ```bash
 git clone https://github.com/skoelle/kctl-tui.git
@@ -110,19 +107,20 @@ go build -o kctl-tui ./cmd/kctl-tui
 sudo mv kctl-tui /usr/local/bin/
 ```
 
-Requires Go 1.22+.
+Requires Go 1.25+.
 
-### Prebuilt binaries
+### 📦 Prebuilt binaries
 
 Every tagged release (`vX.Y.Z`) is built for `linux`, `darwin`, and
 `windows`, each for `amd64` and `arm64`, via the GitHub Actions workflow in
 [.github/workflows/build.yml](.github/workflows/build.yml). Download the
 matching asset from the [Releases page](https://github.com/skoelle/kctl-tui/releases).
 
-## Configuration
+## ⚙️ Configuration
 
 Copy [config.example.yaml](config.example.yaml) to `~/.kctl-tui/config.yaml`
-and adjust it to your own setup:
+and adjust it to your own setup — or use `kctl-tui config edit` to open the
+file directly in your editor (creates the file and directory if needed):
 
 ```yaml
 contexts:
@@ -139,40 +137,47 @@ aws_account_id: "123456789012"
 
 secret_name_template: "tf-{namespace}-{env}-secrets"
 k8s_secret_name_template: "{namespace}-common-secrets"
+external_secret_name_template: "{namespace}"
 context_template: "arn:aws:eks:{region}:{account_id}:cluster/tf-{env}-{context}-1"
 
 team_label_key: "example.org/team"
 aws_sso_login_command: "aws sso login"
 ```
 
-- `contexts` / `default_context`: the top-level grouping the tool starts
+- 🌐 `contexts` / `default_context`: the top-level grouping the tool starts
   from (e.g. a network boundary such as internal/external-facing
   clusters). This is the outermost navigation level, one `Esc` above team
   selection.
-- `envs`: the environments switchable from the control panel (e.g.
+- 🎛️ `envs`: the environments switchable from the control panel (e.g.
   "beta"/"prod"). The **first two** entries are also used for the two k9s
   status panes shown side by side.
-- `aws_region` / `aws_account_id`: used for AWS Secrets Manager calls and
+- 🌍 `aws_region` / `aws_account_id`: used for AWS Secrets Manager calls and
   to fill the `{account_id}` placeholder in `context_template`.
   `123456789012` is a placeholder, not a real account.
-- `secret_name_template`: builds the AWS Secrets Manager secret ID from
+- 🔑 `secret_name_template`: builds the AWS Secrets Manager secret ID from
   the chosen namespace and environment. Placeholders: `{namespace}`,
   `{env}`.
-- `k8s_secret_name_template`: builds the Kubernetes secret name from the
+- 🏷️ `k8s_secret_name_template`: builds the Kubernetes secret name from the
   chosen namespace. Kept separate from `secret_name_template` because the
   two sides commonly follow different naming conventions. Placeholders:
   `{namespace}`.
-- `context_template`: builds the actual kubectl context name/ARN from
+- 🎯 `external_secret_name_template`: builds the ExternalSecret CRD object
+  name to annotate when a force-sync is requested. This is often different
+  from the Kubernetes secret name because the ExternalSecret CRD and the
+  resulting Secret are separate objects (e.g. ExternalSecret `"job-apply"`
+  produces Secret `"job-apply-common-secrets"`). Falls back to
+  `k8s_secret_name_template` if omitted. Placeholders: `{namespace}`.
+- 🔗 `context_template`: builds the actual kubectl context name/ARN from
   region, account ID, environment, and context. Placeholders: `{region}`,
   `{account_id}`, `{env}`, `{context}`. Adjust the literal parts (`tf-`,
   `-1`, cluster naming, ARN shape) to match how your own clusters/contexts
   are actually named — the resolved value must match an existing context
   in your kubeconfig.
-- `team_label_key`: the Kubernetes namespace label used to group
+- 👥 `team_label_key`: the Kubernetes namespace label used to group
   namespaces by team/ownership in the team-selection screen. This is
   entirely up to your organization's labeling convention; kctl-tui ships
   with no default team label of its own.
-- `aws_sso_login_command`: run interactively if `aws sts
+- 🔐 `aws_sso_login_command`: run interactively if `aws sts
   get-caller-identity` fails before the secrets workflow (e.g. an expired
   SSO session). Defaults to `aws sso login`.
 
@@ -180,7 +185,7 @@ aws_sso_login_command: "aws sso login"
 that way — it typically contains your organization's internal account ID,
 context naming, and label names.
 
-## Windows notes
+## 🪟 Windows notes
 
 On native Windows (without WSL), install [psmux](https://github.com/marlocarlo/psmux)
 for the 3-pane layout. psmux is a native Windows terminal multiplexer
@@ -199,19 +204,25 @@ mkdir -p ~/.kube
 ln -s /mnt/c/Users/<your-windows-username>/.kube/config ~/.kube/config
 ```
 
-## Usage
+## 📖 Usage
 
 ```bash
 kctl-tui                    # start the TUI (full navigation mode)
 kctl-tui --help             # show all commands and flags
 kctl-tui --version          # print version
 kctl-tui --verbose          # enable debug logging to stderr
+kctl-tui update             # update to the latest release
 kctl-tui doctor             # check if all tools, config and connections are OK
+kctl-tui config edit        # open ~/.kctl-tui/config.yaml in your editor
 kctl-tui config check       # validate ~/.kctl-tui/config.yaml
 kctl-tui panel --context=... --ns=... --team=...   # internal (called by tmux)
 ```
 
-## Development
+When starting `kctl-tui` without a subcommand, a background check queries
+GitHub Releases for a newer version. If one is found, you are prompted to
+update interactively before the TUI starts.
+
+## 🛠️ Development
 
 ```bash
 go test ./...
@@ -225,6 +236,6 @@ unit tests. Code that shells out to `kubectl`/`aws`/`tmux` lives in
 `internal/kubeexec` and in `cmd/kctl-tui` and is intentionally kept thin
 and untested, since it has no meaningful behavior without a live cluster.
 
-## License
+## 📄 License
 
-[MIT](LICENSE)
+Licensed under the [MIT License](LICENSE) - Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)

SPEC.md

@@ -7,9 +7,10 @@ work, bundling the most common workflows currently done via long
 `kubectl`/`k9s`/`aws-cli` commands, operable through a text UI (arrow keys,
 Esc) instead of long typed commands.
 
-Target platform: **Linux / WSL** (primary usage scenario, since split
+Target platform: **Linux / WSL / Windows** (primary usage scenario, since
-panes require a real terminal multiplexer). Native Windows (without WSL)
+split panes require a real terminal multiplexer). On Windows, use
-is possible but with reduced split-view functionality (see 3.6).
+[psmux](https://github.com/marlocarlo/psmux) as tmux-compatible
+multiplexer.
 
 **Technology decision: Go + Bubble Tea** (see section 5).
 
@@ -75,9 +76,9 @@ Once start navigation is complete, the tool opens a tmux session with
 |  -> runs the kctl-tui binary in "panel" mode      |
 |  -> menu: Redeploy, secrets diff                  |
 +--------------------------------------------------+
-|  Pane 1 (middle): k9s --context <context-a> -n <ns>|
+|  Pane 1 (middle): k9s --context <context-a> --namespace <ns> --command pods|
 +--------------------------------------------------+
-|  Pane 2 (bottom): k9s --context <context-b> -n <ns>|
+|  Pane 2 (bottom): k9s --context <context-b> --namespace <ns> --command pods|
 +--------------------------------------------------+
 ```
 
@@ -89,12 +90,13 @@ not cover: **redeploy** and **secrets diff**.
 Example startup command (generic placeholders):
 
 ```
-tmux kill-session -t kctl \; \
+# Kill stale session first (separate command — tmux aborts on kill-session error).
+tmux kill-session -t kctl
 tmux new-session -d -s kctl \
-  -- "kctl-tui panel --context=$CTX_A --ns=$NS --team=$TEAM" \; \
+  "kctl-tui panel --context=$CTX_A --ns=$NS --team=$TEAM" \; \
   set-option -t kctl remain-on-exit on \; \
-  split-window -v -t kctl:0.0 -- "k9s --context $CTX_A -n $NS" \; \
+  split-window -v -t kctl:0.0 "k9s --context $CTX_A --namespace $NS --command pods" \; \
-  split-window -v -t kctl:0.1 -- "k9s --context $CTX_B -n $NS" \; \
+  split-window -v -t kctl:0.1 "k9s --context $CTX_B --namespace $NS --command pods" \; \
   select-layout -t kctl even-vertical \; \
   select-pane -t kctl:0.0 \; \
   attach -t kctl
@@ -176,11 +178,11 @@ Alternatively, run kctl-tui inside WSL with standard `tmux`.
 
 ## 4. Non-functional requirements
 
-- **Primary platform Linux/WSL**, secondary native Windows (via psmux).
+- **Platforms**: Linux, macOS, Windows (via psmux or WSL).
 - **Single-binary distribution** without external runtime dependency (Go
   provides this natively).
-- **External dependencies**: `kubectl` mandatory; `tmux`, `k9s`, `aws-cli`
+- **External dependencies**: `kubectl` mandatory; `tmux`/`psmux`, `k9s`,
-  depending on the action used.
+  `aws-cli` depending on the action used.
 - **Low startup time**, noticeably faster than the current `kubens`
   experience.
 - **No destructive actions without confirmation** (redeploy, force-sync).
@@ -242,16 +244,14 @@ Rejected options (see discussion history):
 - These fixes are a prerequisite before the tool can be meaningfully
   tested, since it builds directly on `kubectl config`.
 
-## 8. Open items / out of scope (v1)
+## 8. Open items / out of scope
 
 - No automatic label setup for namespaces (migration is a separate,
   one-time task).
-- Split view v1 fixed at 2 status panes + 1 control pane (3 panes total).
+- Split view fixed at 2 status panes + 1 control pane (3 panes total).
 - No RBAC/permission checks before executing sensitive actions — the tool
   assumes existing kubectl permissions.
 - Configuration file format (`config.yaml`) is defined and implemented;
   concrete label keys, context names, and namespace names are
   project-specific and belong exclusively in the user's local, unversioned
   configuration, not in this document or the source code.
-- Native Windows (without WSL) remains a secondary platform with manual
-  pane handling instead of an automated tmux lifecycle.

cmd/kctl-tui/full.go

@@ -1,9 +1,13 @@
+// Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)
+// Licensed under the MIT License. See LICENSE file in project root for details.
+
 package main
 
 import (
 	"fmt"
 	"os"
 	"os/exec"
+	"runtime"
 	"sort"
 
 	tea "github.com/charmbracelet/bubbletea"
@@ -44,9 +48,10 @@ type fullModel struct {
 }
 
 func newFullModel() *fullModel {
-	l := list.New(nil, list.NewDefaultDelegate(), 0, 0)
+	l := list.New(nil, newCompactDelegate(), 0, 0)
 	l.Title = "kctl-tui"
 	l.SetShowStatusBar(false)
+	l.SetFilteringEnabled(false)
 	return &fullModel{list: l}
 }
 
@@ -193,7 +198,11 @@ func (m *fullModel) handleSelect() (tea.Model, tea.Cmd) {
 
 	case screenNamespace:
 		m.selectedNamespace = item.value
-		if err := kubeexec.CheckTool("tmux"); err != nil {
+		tool := "tmux"
+		if runtime.GOOS == "windows" && m.cfg.MultiplexerBackend() == "wt" {
+			tool = "wt"
+		}
+		if err := kubeexec.CheckTool(tool); err != nil {
 			m.err = err
 			return m, nil
 		}
@@ -206,23 +215,21 @@ func (m *fullModel) handleSelect() (tea.Model, tea.Cmd) {
 	return m, nil
 }
 
-// bootstrapContext resolves a kubectl context purely to discover
-// namespaces/labels for the team/namespace screens. The first configured
-// env is used as a stable default for this discovery step, since
-// namespace names are assumed to be identical across envs.
-func (m *fullModel) bootstrapContext() string {
-	if len(m.cfg.Envs) == 0 {
-		return ""
-	}
-	return m.cfg.ResolveContext(m.cfg.Envs[0], m.selectedContext)
-}
-
 func (m *fullModel) loadTeams() tea.Msg {
-	namespaces, err := kubeexec.GetNamespacesWithLabels(m.bootstrapContext())
+	merged := map[string]map[string]string{}
-	if err != nil {
+	for _, env := range m.cfg.Envs {
-		return errMsg{err}
+		ctx := m.cfg.ResolveContext(env, m.selectedContext)
+		namespaces, err := kubeexec.GetNamespacesWithLabels(ctx)
+		if err != nil {
+			continue
+		}
+		for ns, labels := range namespaces {
+			if _, exists := merged[ns]; !exists {
+				merged[ns] = labels
+			}
+		}
 	}
-	return *toTeamsLoadedMsg(namespaces, m.cfg.TeamLabelKey)
+	return *toTeamsLoadedMsg(merged, m.cfg.TeamLabelKey)
 }
 
 func (m *fullModel) loadTeamsFor(namespaces map[string]map[string]string) tea.Cmd {
@@ -260,12 +267,21 @@ func (m *fullModel) loadNamespacesFor(teamValue string) tea.Cmd {
 	}
 }
 
-// startTmuxSession builds the 3-pane tmux command: the control pane runs
+// startTmuxSession builds the 3-pane session: the control pane runs
 // this binary in "panel" mode (letting the user pick an env and an
 // action), and the two status panes run k9s against the first two
 // configured envs, resolved via the context template, so both are
-// visible side by side.
+// visible side by side. On Windows with multiplexer: "wt", this uses
+// Windows Terminal's native split-pane instead of tmux/psmux.
 func (m *fullModel) startTmuxSession() tea.Cmd {
+	if runtime.GOOS == "windows" && m.cfg.MultiplexerBackend() == "wt" {
+		return m.startWtSession()
+	}
+	return m.startTmuxSessionTmux()
+}
+
+// startTmuxSessionTmux creates the session using tmux/psmux.
+func (m *fullModel) startTmuxSessionTmux() tea.Cmd {
 	selfPath, err := os.Executable()
 	if err != nil {
 		selfPath = "kctl-tui" // fallback to PATH lookup
@@ -275,36 +291,85 @@ func (m *fullModel) startTmuxSession() tea.Cmd {
 
 	envA := m.cfg.Envs[0]
 	ctxA := m.cfg.ResolveContext(envA, m.selectedContext)
-	k9sCmdA := fmt.Sprintf("k9s --context %s -n %s", ctxA, m.selectedNamespace)
+	k9sCmdA := fmt.Sprintf("k9s --context %s --namespace %s --command pods", ctxA, m.selectedNamespace)
 
-	args := []string{
+	kubeexec.VerboseLog("[debug] selfPath=%s\n", selfPath)
-		"kill-session", "-t", "kctl", ";", // ignore error if no session exists
+	kubeexec.VerboseLog("[debug] panelCmd=%s\n", panelCmd)
-		"new-session", "-d", "-s", "kctl",
+	kubeexec.VerboseLog("[debug] k9sCmdA=%s\n", k9sCmdA)
-		"--", panelCmd, ";",
+
-		"set-option", "-t", "kctl", "remain-on-exit", "on", ";",
+	// Kill stale session first (ignore error if none exists).
-		"split-window", "-v", "-t", "kctl:0.0", "--", k9sCmdA, ";",
+	exec.Command("tmux", "kill-session", "-t", "kctl").Run()
+
+	// Run setup commands individually — this avoids the ; separator
+	// issue on Windows where psmux doesn't handle chained args.
+	setup := [][]string{
+		{"new-session", "-d", "-s", "kctl", panelCmd},
+		{"set-option", "-t", "kctl", "remain-on-exit", "on"},
+		{"split-window", "-v", "-t", "kctl:0.0", k9sCmdA},
 	}
 	if len(m.cfg.Envs) > 1 {
 		envB := m.cfg.Envs[1]
 		ctxB := m.cfg.ResolveContext(envB, m.selectedContext)
-		k9sCmdB := fmt.Sprintf("k9s --context %s -n %s", ctxB, m.selectedNamespace)
+		k9sCmdB := fmt.Sprintf("k9s --context %s --namespace %s --command pods", ctxB, m.selectedNamespace)
-		args = append(args,
+		kubeexec.VerboseLog("[debug] k9sCmdB=%s\n", k9sCmdB)
-			"split-window", "-v", "-t", "kctl:0.1", "--", k9sCmdB, ";",
+		setup = append(setup, []string{"split-window", "-v", "-t", "kctl:0.1", k9sCmdB})
-		)
 	}
-	args = append(args,
+	setup = append(setup,
-		"select-layout", "-t", "kctl", "even-vertical", ";",
+		[]string{"select-layout", "-t", "kctl", "even-vertical"},
-		"select-pane", "-t", "kctl:0.0", ";",
+		[]string{"select-pane", "-t", "kctl:0.0"},
-		"attach", "-t", "kctl",
 	)
 
-	c := exec.Command("tmux", args...)
+	for _, args := range setup {
+		if out, err := exec.Command("tmux", args...).CombinedOutput(); err != nil {
+			kubeexec.VerboseLog("[debug] tmux %s failed: %v\n%s\n", args[0], err, out)
+			return func() tea.Msg { return tmuxDoneMsg{err: fmt.Errorf("tmux %s: %w", args[0], err)} }
+		}
+	}
 
+	// Only attach uses tea.ExecProcess so it takes over the terminal.
+	c := exec.Command("tmux", "attach", "-t", "kctl")
 	return tea.ExecProcess(c, func(err error) tea.Msg {
 		return tmuxDoneMsg{err: err}
 	})
 }
 
+// startWtSession creates the session using Windows Terminal's native
+// split-pane feature. This avoids the psmux focus-freeze issue on Windows.
+// Note: In Windows Terminal, -H (horizontal) stacks panes top/bottom,
+// while -V (vertical) places them side by side — opposite of tmux.
+// The -s flag controls the split ratio: first split gives k9sA 75%
+// (panel keeps 25%), second split divides k9sA equally (37.5% each).
+func (m *fullModel) startWtSession() tea.Cmd {
+	selfPath, err := os.Executable()
+	if err != nil {
+		selfPath = "kctl-tui"
+	}
+	panelCmd := fmt.Sprintf("%s panel --context=%s --ns=%s --team=%s",
+		selfPath, m.selectedContext, m.selectedNamespace, m.selectedTeam)
+
+	envA := m.cfg.Envs[0]
+	ctxA := m.cfg.ResolveContext(envA, m.selectedContext)
+	k9sCmdA := fmt.Sprintf("k9s --context %s --namespace %s --command pods", ctxA, m.selectedNamespace)
+
+	kubeexec.VerboseLog("[debug] selfPath=%s\n", selfPath)
+	kubeexec.VerboseLog("[debug] panelCmd=%s\n", panelCmd)
+	kubeexec.VerboseLog("[debug] k9sCmdA=%s\n", k9sCmdA)
+
+	wtCmd := fmt.Sprintf("wt -F new-tab %s ; split-pane -H -s 0.75 %s", panelCmd, k9sCmdA)
+
+	if len(m.cfg.Envs) > 1 {
+		envB := m.cfg.Envs[1]
+		ctxB := m.cfg.ResolveContext(envB, m.selectedContext)
+		k9sCmdB := fmt.Sprintf("k9s --context %s --namespace %s --command pods", ctxB, m.selectedNamespace)
+		kubeexec.VerboseLog("[debug] k9sCmdB=%s\n", k9sCmdB)
+		wtCmd += fmt.Sprintf(" ; split-pane -H -s 0.5 %s", k9sCmdB)
+	}
+
+	c := exec.Command("cmd", "/c", wtCmd)
+	_ = c.Start()
+	return nil
+}
+
 func (m *fullModel) View() string {
 	view := m.list.View()
 	if m.statusMessage != "" {

cmd/kctl-tui/helpers.go

@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)
+// Licensed under the MIT License. See LICENSE file in project root for details.
+
 package main
 
 import "github.com/skoelle/kctl-tui/internal/kctl"

cmd/kctl-tui/list_item.go

@@ -1,5 +1,10 @@
+// Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)
+// Licensed under the MIT License. See LICENSE file in project root for details.
+
 package main
 
+import "github.com/charmbracelet/bubbles/list"
+
 // simpleItem is a minimal implementation of list.Item used for all
 // selection screens (contexts, teams, namespaces, menu actions).
 type simpleItem struct {
@@ -10,3 +15,13 @@ type simpleItem struct {
 func (i simpleItem) Title() string       { return i.label }
 func (i simpleItem) Description() string { return "" }
 func (i simpleItem) FilterValue() string { return i.label }
+
+// newCompactDelegate returns a list delegate that renders each item as a
+// single line with no extra spacing, maximizing the number of visible
+// entries in the terminal.
+func newCompactDelegate() list.DefaultDelegate {
+	d := list.NewDefaultDelegate()
+	d.ShowDescription = false
+	d.SetSpacing(0)
+	return d
+}

cmd/kctl-tui/main.go

@@ -1,8 +1,14 @@
+// Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)
+// Licensed under the MIT License. See LICENSE file in project root for details.
+
 package main
 
 import (
 	"fmt"
 	"os"
+	"os/exec"
+	"path/filepath"
+	"runtime"
 
 	tea "github.com/charmbracelet/bubbletea"
 
@@ -26,6 +32,8 @@ func main() {
 			verbose = true
 		case "--version", "-v":
 			fmt.Printf("kctl-tui %s\n", version)
+			fmt.Println("Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)")
+			fmt.Println("Licensed under the MIT License")
 			return
 		case "--help", "-h":
 			showHelp = true
@@ -37,11 +45,12 @@ func main() {
 		kubeexec.SetVerbose(true, os.Stderr)
 	}
 
-	if showHelp || len(filtered) == 0 {
+	if showHelp {
 		printUsage()
-		if showHelp && len(filtered) == 0 {
+		return
-			return
+	}
-		}
+	if len(filtered) == 0 {
+		// No subcommand — start the full TUI.
 	}
 
 	if len(filtered) > 0 {
@@ -64,6 +73,35 @@ func main() {
 				os.Exit(1)
 			}
 			return
+		case "update":
+			if err := runUpdate(verbose); err != nil {
+				fmt.Fprintln(os.Stderr, "kctl-tui update error:", err)
+				os.Exit(1)
+			}
+			return
+		default:
+			fmt.Fprintf(os.Stderr, "unknown command: %s\n\n", filtered[0])
+			printUsage()
+			os.Exit(1)
+		}
+	}
+
+	// Load config early to check auto_update_update and validate.
+	cfgPath, err := config.DefaultPath()
+	if err == nil {
+		cfg, cfgErr := config.Load(cfgPath)
+		if cfgErr != nil {
+			fmt.Fprintf(os.Stderr, "WARNING: failed to load config: %v\n", cfgErr)
+		}
+		if cfgErr == nil && cfg.IsAutoUpdateCheckEnabled() {
+			updated, err := checkForUpdateInteractive(verbose)
+			if err != nil {
+				fmt.Fprintln(os.Stderr, err)
+				os.Exit(1)
+			}
+			if updated {
+				os.Exit(0)
+			}
 		}
 	}
 
@@ -77,10 +115,13 @@ func main() {
 
 func printUsage() {
 	fmt.Print(`kctl-tui — Kubernetes entry-point TUI
+https://github.com/skoelle/kctl-tui
 
 Usage:
   kctl-tui [flags]             start the TUI (full navigation mode)
   kctl-tui doctor              check tools, config and connections
+  kctl-tui update              update to the latest release
+  kctl-tui config edit         open ~/.kctl-tui/config.yaml in editor
   kctl-tui config check        validate ~/.kctl-tui/config.yaml
   kctl-tui panel [options]     control pane (called internally by tmux)
 
@@ -92,15 +133,58 @@ Flags:
 Examples:
   kctl-tui                          # start the TUI
   kctl-tui doctor                   # verify everything is installed
+  kctl-tui update                   # update to the latest version
   kctl-tui --verbose 2>debug.log    # log commands to a file
+  kctl-tui config edit              # open config in editor
   kctl-tui config check             # validate config
 `)
 }
 
 func runConfig(args []string) error {
-	if len(args) == 0 || args[0] != "check" {
+	if len(args) > 0 && args[0] == "check" {
-		return fmt.Errorf("usage: kctl-tui config check")
+		return runConfigCheck()
 	}
+	if len(args) == 0 || args[0] == "edit" {
+		return runConfigEdit()
+	}
+	return fmt.Errorf("usage: kctl-tui config [check|edit]")
+}
+
+func runConfigEdit() error {
+	cfgPath, err := config.DefaultPath()
+	if err != nil {
+		return fmt.Errorf("cannot determine config path: %w", err)
+	}
+	dir := filepath.Dir(cfgPath)
+	if err := os.MkdirAll(dir, 0o700); err != nil {
+		return fmt.Errorf("cannot create config directory %s: %w", dir, err)
+	}
+	if _, err := os.Stat(cfgPath); os.IsNotExist(err) {
+		if err := os.WriteFile(cfgPath, []byte("# kctl-tui configuration\n# See https://github.com/skoelle/kctl-tui for examples.\n"), 0o600); err != nil {
+			return fmt.Errorf("cannot create config file %s: %w", cfgPath, err)
+		}
+		fmt.Printf("Created new config file: %s\n", cfgPath)
+	}
+	editor := os.Getenv("VISUAL")
+	if editor == "" {
+		editor = os.Getenv("EDITOR")
+	}
+	if editor == "" {
+		switch runtime.GOOS {
+		case "windows":
+			editor = "notepad"
+		default:
+			editor = "vim"
+		}
+	}
+	cmd := exec.Command(editor, cfgPath)
+	cmd.Stdin = os.Stdin
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	return cmd.Run()
+}
+
+func runConfigCheck() error {
 	cfgPath, err := config.DefaultPath()
 	if err != nil {
 		return fmt.Errorf("cannot determine config path: %w", err)

cmd/kctl-tui/panel.go

@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)
+// Licensed under the MIT License. See LICENSE file in project root for details.
+
 package main
 
 import (
@@ -5,6 +8,7 @@ import (
 	"flag"
 	"fmt"
 	"os/exec"
+	"runtime"
 	"strconv"
 	"strings"
 	"time"
@@ -46,8 +50,9 @@ type panelModel struct {
 
 	deploymentName string
 
-	awsSecretName string // resolved via secret_name_template (namespace + env)
+	awsSecretName       string // resolved via secret_name_template (namespace + env)
-	k8sSecretName string // resolved via k8s_secret_name_template (namespace only)
+	k8sSecretName       string // resolved via k8s_secret_name_template (namespace only)
+	externalSecretName  string // resolved via external_secret_name_template (namespace only)
 	awsValues     map[string]string
 	k8sValues     map[string]string
 	diffEntries   []kctl.SecretDiffEntry
@@ -57,6 +62,11 @@ type panelModel struct {
 	err      error
 }
 
+// isWtMode returns true when running on Windows with multiplexer: "wt".
+func (m *panelModel) isWtMode() bool {
+	return runtime.GOOS == "windows" && m.cfg.MultiplexerBackend() == "wt"
+}
+
 func runPanel(args []string) error {
 	fs := flag.NewFlagSet("panel", flag.ContinueOnError)
 	context := fs.String("context", "", "context (e.g. internal/external)")
@@ -79,10 +89,14 @@ func newPanelModel(context, ns, team string) *panelModel {
 	cfgPath, _ := config.DefaultPath()
 	cfg, loadErr := config.Load(cfgPath)
 
-	l := list.New(nil, list.NewDefaultDelegate(), 0, 0)
+	l := list.New(nil, newCompactDelegate(), 0, 0)
 	l.SetShowStatusBar(false)
+	l.SetFilteringEnabled(false)
 
 	m := &panelModel{context: context, ns: ns, team: team, cfg: cfg, step: stepEnvMenu, list: l, input: ti}
+	if m.isWtMode() {
+		l.KeyMap.Quit.SetEnabled(false) // "q" deaktivieren, "ctrl+c" bleibt
+	}
 	if loadErr != nil {
 		m.err = fmt.Errorf("config load failed: %w", loadErr)
 		m.step = stepError
@@ -94,7 +108,9 @@ func newPanelModel(context, ns, team string) *panelModel {
 
 func (m *panelModel) showEnvMenu() {
 	items := make([]list.Item, 0, len(m.cfg.Envs)+1)
-	items = append(items, simpleItem{label: "Quit (closes this tmux session)", value: "quit"})
+	if !m.isWtMode() {
+		items = append(items, simpleItem{label: "Quit (closes this tmux session)", value: "quit"})
+	}
 	for _, env := range m.cfg.Envs {
 		items = append(items, simpleItem{label: env, value: env})
 	}
@@ -174,10 +190,14 @@ func (m *panelModel) usesTextInput() bool {
 // handleEsc navigates one level up: action menu -> env menu, most
 // sub-steps -> action menu. From the top-level env menu it closes the
 // whole tmux session (all panes, including the two k9s status panes)
-// before quitting this program, per SPEC.md 3.6.
+// before quitting this program, per SPEC.md 3.6. In wt mode, Esc on
+// the env menu does nothing — the user closes the wt window manually.
 func (m *panelModel) handleEsc() (tea.Model, tea.Cmd) {
 	switch m.step {
 	case stepEnvMenu:
+		if m.isWtMode() {
+			return m, nil
+		}
 		exec.Command("tmux", "kill-session", "-t", "kctl").Run()
 		return m, tea.Quit
 	case stepActionMenu:
@@ -312,6 +332,7 @@ func (m *panelModel) afterAWSLogin(execErr error) (tea.Model, tea.Cmd) {
 func (m *panelModel) startSecretsFlow() (tea.Model, tea.Cmd) {
 	m.awsSecretName = m.cfg.ResolveSecretName(m.ns, m.currentEnv)
 	m.k8sSecretName = m.cfg.ResolveK8sSecretName(m.ns)
+	m.externalSecretName = m.cfg.ResolveExternalSecretName(m.ns)
 
 	raw, err := kubeexec.GetAWSSecretString(m.awsSecretName, m.cfg.AWSRegion)
 	if err != nil {
@@ -458,7 +479,7 @@ func (m *panelModel) fromForceSyncConfirm() (tea.Model, tea.Cmd) {
 		return m, nil
 	}
 	m.step = stepExternalSecretName
-	m.input.SetValue(m.k8sSecretName)
+	m.input.SetValue(m.externalSecretName)
 	m.input.Placeholder = "ExternalSecret object name"
 	return m, nil
 }

cmd/kctl-tui/update.go

@@ -0,0 +1,155 @@
+// Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)
+// Licensed under the MIT License. See LICENSE file in project root for details.
+
+package main
+
+import (
+	"bufio"
+	"context"
+	"fmt"
+	"os"
+	"strings"
+	"time"
+
+	"github.com/Masterminds/semver/v3"
+	"github.com/creativeprojects/go-selfupdate"
+	"golang.org/x/term"
+)
+
+const (
+	githubSlug    = "skoelle/kctl-tui"
+	updateTimeout = 10 * time.Second
+)
+
+func initUpdater(verbose bool) (*selfupdate.Updater, error) {
+	if verbose {
+		selfupdate.SetLogger(&verboseLogger{})
+	}
+
+	source, err := selfupdate.NewGitHubSource(selfupdate.GitHubConfig{})
+	if err != nil {
+		return nil, fmt.Errorf("failed to init GitHub source: %w", err)
+	}
+
+	return selfupdate.NewUpdater(selfupdate.Config{
+		Source: source,
+	})
+}
+
+func runUpdate(verbose bool) error {
+	if version == "dev" {
+		fmt.Fprintln(os.Stderr, "WARNING: running dev build — cannot compare versions")
+		fmt.Fprintln(os.Stderr, "Skipping version check. Build from a tagged release to enable self-update.")
+		return nil
+	}
+
+	updater, err := initUpdater(verbose)
+	if err != nil {
+		return err
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), updateTimeout)
+	defer cancel()
+
+	repo := selfupdate.ParseSlug(githubSlug)
+	rel, found, err := updater.DetectLatest(ctx, repo)
+	if err != nil {
+		return fmt.Errorf("failed to check for updates: %w", err)
+	}
+	if !found {
+		fmt.Println("Already up-to-date.")
+		return nil
+	}
+
+	current, _ := semver.NewVersion(version)
+	newVersion := rel.Version()
+
+	newVer, _ := semver.NewVersion(newVersion)
+
+	if current != nil && !current.LessThan(newVer) {
+		fmt.Println("Already up-to-date.")
+		return nil
+	}
+
+	fmt.Printf("Current version: %s\n", version)
+	fmt.Printf("Found version %s. Updating...\n", newVersion)
+
+	if err := updater.UpdateTo(ctx, rel, ""); err != nil {
+		return fmt.Errorf("update failed: %w", err)
+	}
+
+	fmt.Printf("Updated from %s to %s\n", current, newVersion)
+	return nil
+}
+
+// checkForUpdateInteractive checks for a new version and prompts the user to update.
+// Returns (true, nil) if an update was applied successfully, (false, nil) if no
+// update was needed or the user declined, and (false, err) if the update failed.
+func checkForUpdateInteractive(verbose bool) (bool, error) {
+	if version == "dev" {
+		return false, nil
+	}
+
+	if !term.IsTerminal(int(os.Stdin.Fd())) {
+		return false, nil
+	}
+
+	updater, err := initUpdater(verbose)
+	if err != nil {
+		if verbose {
+			fmt.Fprintf(os.Stderr, "Update check failed: %v\n", err)
+		}
+		return false, nil
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), updateTimeout)
+	defer cancel()
+
+	repo := selfupdate.ParseSlug(githubSlug)
+	rel, found, err := updater.DetectLatest(ctx, repo)
+	if err != nil {
+		if verbose {
+			fmt.Fprintf(os.Stderr, "Update check failed: %v\n", err)
+		}
+		return false, nil
+	}
+	if !found {
+		return false, nil
+	}
+
+	current, _ := semver.NewVersion(version)
+	newVersion := rel.Version()
+	newVer, _ := semver.NewVersion(newVersion)
+
+	if current != nil && !current.LessThan(newVer) {
+		return false, nil
+	}
+
+	fmt.Printf("New version %s available (current: %s). Update now? [y/N] ", newVersion, version)
+
+	reader := bufio.NewReader(os.Stdin)
+	answer, _ := reader.ReadString('\n')
+	answer = strings.TrimSpace(strings.ToLower(answer))
+
+	if answer != "y" && answer != "yes" {
+		return false, nil
+	}
+
+	fmt.Println("Updating...")
+	if err := updater.UpdateTo(ctx, rel, ""); err != nil {
+		return false, fmt.Errorf("update failed: %w", err)
+	}
+
+	fmt.Printf("Updated to %s. Please restart kctl-tui.\n", newVersion)
+	return true, nil
+}
+
+type verboseLogger struct{}
+
+func (l *verboseLogger) Print(v ...any) {
+	fmt.Fprint(os.Stderr, v...)
+}
+
+func (l *verboseLogger) Printf(format string, v ...any) {
+	fmt.Fprintf(os.Stderr, format, v...)
+}

config.example.yaml

@@ -42,6 +42,14 @@ secret_name_template: "tf-{namespace}-{env}-secrets"
 # Available placeholders: {namespace}.
 k8s_secret_name_template: "{namespace}-common-secrets"
 
+# Builds the ExternalSecret CRD object name to annotate when a force-sync
+# is requested. This is often different from the Kubernetes secret name
+# because the ExternalSecret CRD and the resulting Secret are separate
+# objects (e.g. ExternalSecret "job-apply" produces Secret
+# "job-apply-common-secrets"). Falls back to k8s_secret_name_template
+# if omitted. Available placeholders: {namespace}.
+external_secret_name_template: "{namespace}"
+
 # Builds the actual kubectl context name/ARN from region, account ID, env,
 # and context. Available placeholders: {region}, {account_id}, {env},
 # {context}. Adjust the literal parts ("tf-", "-1", cluster naming, ARN
@@ -60,3 +68,12 @@ team_label_key: "example.org/team"
 # wraps SSO login in a custom script or needs a specific --profile, e.g.:
 #   aws_sso_login_command: "aws sso login --profile my-profile"
 aws_sso_login_command: "aws sso login"
+
+# Check for updates on startup and prompt to update if a newer version is
+# available. Set to false to disable. Defaults to true if omitted.
+# auto_update_check: true
+
+# Terminal multiplexer backend. "tmux" (default) uses tmux/psmux.
+# "wt" uses Windows Terminal's native split-pane — avoids the psmux
+# focus-freeze issue on Windows. Only effective on Windows.
+# multiplexer: "tmux"

go.mod

@@ -1,30 +1,52 @@
 module github.com/skoelle/kctl-tui
 
-go 1.22
+go 1.25.12
 
 require (
-	github.com/charmbracelet/bubbles v0.20.0
+	github.com/Masterminds/semver/v3 v3.5.0
-	github.com/charmbracelet/bubbletea v1.1.1
+	github.com/charmbracelet/bubbles v0.21.1
+	github.com/charmbracelet/bubbletea v1.3.10
+	github.com/creativeprojects/go-selfupdate v1.6.0
+	golang.org/x/term v0.44.0
 	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
+	code.gitea.io/sdk/gitea v0.23.2 // indirect
+	github.com/42wim/httpsig v1.2.4 // indirect
 	github.com/atotto/clipboard v0.1.4 // indirect
 	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
-	github.com/charmbracelet/lipgloss v1.0.0 // indirect
+	github.com/charmbracelet/colorprofile v0.4.1 // indirect
-	github.com/charmbracelet/x/ansi v0.4.2 // indirect
+	github.com/charmbracelet/lipgloss v1.1.0 // indirect
-	github.com/charmbracelet/x/term v0.2.0 // indirect
+	github.com/charmbracelet/x/ansi v0.11.5 // indirect
+	github.com/charmbracelet/x/cellbuf v0.0.15 // indirect
+	github.com/charmbracelet/x/term v0.2.2 // indirect
+	github.com/clipperhouse/displaywidth v0.9.0 // indirect
+	github.com/clipperhouse/stringish v0.1.1 // indirect
+	github.com/clipperhouse/uax29/v2 v2.5.0 // indirect
+	github.com/davidmz/go-pageant v1.0.2 // indirect
 	github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f // indirect
-	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
+	github.com/go-fed/httpsig v1.1.0 // indirect
+	github.com/google/go-github/v86 v86.0.0 // indirect
+	github.com/google/go-querystring v1.2.0 // indirect
+	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
+	github.com/hashicorp/go-retryablehttp v0.7.8 // indirect
+	github.com/hashicorp/go-version v1.9.0 // indirect
+	github.com/lucasb-eyer/go-colorful v1.3.0 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mattn/go-localereader v0.0.1 // indirect
-	github.com/mattn/go-runewidth v0.0.16 // indirect
+	github.com/mattn/go-runewidth v0.0.19 // indirect
 	github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 // indirect
 	github.com/muesli/cancelreader v0.2.2 // indirect
-	github.com/muesli/termenv v0.15.2 // indirect
+	github.com/muesli/termenv v0.16.0 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/sahilm/fuzzy v0.1.1 // indirect
-	golang.org/x/sync v0.8.0 // indirect
+	github.com/ulikunitz/xz v0.5.15 // indirect
-	golang.org/x/sys v0.24.0 // indirect
+	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
-	golang.org/x/text v0.3.8 // indirect
+	gitlab.com/gitlab-org/api/client-go v1.46.0 // indirect
+	golang.org/x/crypto v0.53.0 // indirect
+	golang.org/x/oauth2 v0.36.0 // indirect
+	golang.org/x/sys v0.47.0 // indirect
+	golang.org/x/text v0.38.0 // indirect
+	golang.org/x/time v0.15.0 // indirect
 )

go.sum

@@ -1,48 +1,126 @@
+code.gitea.io/sdk/gitea v0.23.2 h1:iJB1FDmLegwfwjX8gotBDHdPSbk/ZR8V9VmEJaVsJYg=
+code.gitea.io/sdk/gitea v0.23.2/go.mod h1:yyF5+GhljqvA30sRDreoyHILruNiy4ASufugzYg0VHM=
+github.com/42wim/httpsig v1.2.4 h1:mI5bH0nm4xn7K18fo1K3okNDRq8CCJ0KbBYWyA6r8lU=
+github.com/42wim/httpsig v1.2.4/go.mod h1:yKsYfSyTBEohkPik224QPFylmzEBtda/kjyIAJjh3ps=
+github.com/Masterminds/semver/v3 v3.5.0 h1:kQceYJfbupGfZOKZQg0kou0DgAKhzDg2NZPAwZ/2OOE=
+github.com/Masterminds/semver/v3 v3.5.0/go.mod h1:4V+yj/TJE1HU9XfppCwVMZq3I84lprf4nC11bSS5beM=
 github.com/atotto/clipboard v0.1.4 h1:EH0zSVneZPSuFR11BlR9YppQTVDbh5+16AmcJi4g1z4=
 github.com/atotto/clipboard v0.1.4/go.mod h1:ZY9tmq7sm5xIbd9bOK4onWV4S6X0u6GY7Vn0Yu86PYI=
 github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
 github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8=
-github.com/charmbracelet/bubbles v0.20.0 h1:jSZu6qD8cRQ6k9OMfR1WlM+ruM8fkPWkHvQWD9LIutE=
+github.com/aymanbagabas/go-udiff v0.3.1 h1:LV+qyBQ2pqe0u42ZsUEtPiCaUoqgA9gYRDs3vj1nolY=
-github.com/charmbracelet/bubbles v0.20.0/go.mod h1:39slydyswPy+uVOHZ5x/GjwVAFkCsV8IIVy+4MhzwwU=
+github.com/aymanbagabas/go-udiff v0.3.1/go.mod h1:G0fsKmG+P6ylD0r6N/KgQD/nWzgfnl8ZBcNLgcbrw8E=
-github.com/charmbracelet/bubbletea v1.1.1 h1:KJ2/DnmpfqFtDNVTvYZ6zpPFL9iRCRr0qqKOCvppbPY=
+github.com/charmbracelet/bubbles v0.21.1 h1:nj0decPiixaZeL9diI4uzzQTkkz1kYY8+jgzCZXSmW0=
-github.com/charmbracelet/bubbletea v1.1.1/go.mod h1:9Ogk0HrdbHolIKHdjfFpyXJmiCzGwy+FesYkZr7hYU4=
+github.com/charmbracelet/bubbles v0.21.1/go.mod h1:HHvIYRCpbkCJw2yo0vNX1O5loCwSr9/mWS8GYSg50Sk=
-github.com/charmbracelet/lipgloss v1.0.0 h1:O7VkGDvqEdGi93X+DeqsQ7PKHDgtQfF8j8/O2qFMQNg=
+github.com/charmbracelet/bubbletea v1.3.10 h1:otUDHWMMzQSB0Pkc87rm691KZ3SWa4KUlvF9nRvCICw=
-github.com/charmbracelet/lipgloss v1.0.0/go.mod h1:U5fy9Z+C38obMs+T+tJqst9VGzlOYGj4ri9reL3qUlo=
+github.com/charmbracelet/bubbletea v1.3.10/go.mod h1:ORQfo0fk8U+po9VaNvnV95UPWA1BitP1E0N6xJPlHr4=
-github.com/charmbracelet/x/ansi v0.4.2 h1:0JM6Aj/g/KC154/gOP4vfxun0ff6itogDYk41kof+qk=
+github.com/charmbracelet/colorprofile v0.4.1 h1:a1lO03qTrSIRaK8c3JRxJDZOvhvIeSco3ej+ngLk1kk=
-github.com/charmbracelet/x/ansi v0.4.2/go.mod h1:dk73KoMTT5AX5BsX0KrqhsTqAnhZZoCBjs7dGWp4Ktw=
+github.com/charmbracelet/colorprofile v0.4.1/go.mod h1:U1d9Dljmdf9DLegaJ0nGZNJvoXAhayhmidOdcBwAvKk=
-github.com/charmbracelet/x/term v0.2.0 h1:cNB9Ot9q8I711MyZ7myUR5HFWL/lc3OpU8jZ4hwm0x0=
+github.com/charmbracelet/lipgloss v1.1.0 h1:vYXsiLHVkK7fp74RkV7b2kq9+zDLoEU4MZoFqR/noCY=
-github.com/charmbracelet/x/term v0.2.0/go.mod h1:GVxgxAbjUrmpvIINHIQnJJKpMlHiZ4cktEQCN6GWyF0=
+github.com/charmbracelet/lipgloss v1.1.0/go.mod h1:/6Q8FR2o+kj8rz4Dq0zQc3vYf7X+B0binUUBwA0aL30=
+github.com/charmbracelet/x/ansi v0.11.5 h1:NBWeBpj/lJPE3Q5l+Lusa4+mH6v7487OP8K0r1IhRg4=
+github.com/charmbracelet/x/ansi v0.11.5/go.mod h1:2JNYLgQUsyqaiLovhU2Rv/pb8r6ydXKS3NIttu3VGZQ=
+github.com/charmbracelet/x/cellbuf v0.0.15 h1:ur3pZy0o6z/R7EylET877CBxaiE1Sp1GMxoFPAIztPI=
+github.com/charmbracelet/x/cellbuf v0.0.15/go.mod h1:J1YVbR7MUuEGIFPCaaZ96KDl5NoS0DAWkskup+mOY+Q=
+github.com/charmbracelet/x/exp/golden v0.0.0-20241011142426-46044092ad91 h1:payRxjMjKgx2PaCWLZ4p3ro9y97+TVLZNaRZgJwSVDQ=
+github.com/charmbracelet/x/exp/golden v0.0.0-20241011142426-46044092ad91/go.mod h1:wDlXFlCrmJ8J+swcL/MnGUuYnqgQdW9rhSD61oNMb6U=
+github.com/charmbracelet/x/term v0.2.2 h1:xVRT/S2ZcKdhhOuSP4t5cLi5o+JxklsoEObBSgfgZRk=
+github.com/charmbracelet/x/term v0.2.2/go.mod h1:kF8CY5RddLWrsgVwpw4kAa6TESp6EB5y3uxGLeCqzAI=
+github.com/clipperhouse/displaywidth v0.9.0 h1:Qb4KOhYwRiN3viMv1v/3cTBlz3AcAZX3+y9OLhMtAtA=
+github.com/clipperhouse/displaywidth v0.9.0/go.mod h1:aCAAqTlh4GIVkhQnJpbL0T/WfcrJXHcj8C0yjYcjOZA=
+github.com/clipperhouse/stringish v0.1.1 h1:+NSqMOr3GR6k1FdRhhnXrLfztGzuG+VuFDfatpWHKCs=
+github.com/clipperhouse/stringish v0.1.1/go.mod h1:v/WhFtE1q0ovMta2+m+UbpZ+2/HEXNWYXQgCt4hdOzA=
+github.com/clipperhouse/uax29/v2 v2.5.0 h1:x7T0T4eTHDONxFJsL94uKNKPHrclyFI0lm7+w94cO8U=
+github.com/clipperhouse/uax29/v2 v2.5.0/go.mod h1:Wn1g7MK6OoeDT0vL+Q0SQLDz/KpfsVRgg6W7ihQeh4g=
+github.com/creativeprojects/go-selfupdate v1.6.0 h1:Bu3cIgdyfI1Pg8XsL8nbaT2uMjfZ8HIoxnBmPJbN0sw=
+github.com/creativeprojects/go-selfupdate v1.6.0/go.mod h1:Ids8O474XGQG0jZ5vpBIhWffcGYjUP6ccOI0mMcvQbI=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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install.sh

@@ -1,4 +1,6 @@
 #!/usr/bin/env bash
+# Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)
+# Licensed under the MIT License. See LICENSE file in project root for details.
 # Install script for kctl-tui.
 # Downloads the latest GitHub release binary matching the current OS/arch
 # and installs it to /usr/local/bin (or $INSTALL_DIR if set).

internal/config/config.go

@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)
+// Licensed under the MIT License. See LICENSE file in project root for details.
+
 // Package config loads the user-specific, non-versioned kctl-tui
 // configuration (contexts, envs, templates) from a YAML file.
 package config
@@ -47,6 +50,13 @@ type Config struct {
 	// naming conventions.
 	K8sSecretNameTemplate string `yaml:"k8s_secret_name_template"`
 
+	// ExternalSecretNameTemplate builds the ExternalSecret CRD object
+	// name that should be annotated when a force-sync is requested. This
+	// is often different from the Kubernetes secret name because the
+	// ExternalSecret CRD and the resulting Secret are separate objects.
+	// Falls back to K8sSecretNameTemplate if empty.
+	ExternalSecretNameTemplate string `yaml:"external_secret_name_template"`
+
 	// ContextTemplate builds the actual kubectl context name/ARN from
 	// region, account_id, env, and context, e.g.
 	// "arn:aws:eks:{region}:{account_id}:cluster/tf-{env}-{context}-1".
@@ -59,6 +69,33 @@ type Config struct {
 	// AWSSSOLoginCommand is run interactively if an AWS auth check fails
 	// before the secrets workflow (e.g. an expired SSO session).
 	AWSSSOLoginCommand string `yaml:"aws_sso_login_command"`
+
+	// AutoUpdateCheck controls whether kctl-tui checks for updates on
+	// startup. Defaults to true when omitted.
+	AutoUpdateCheck *bool `yaml:"auto_update_check"`
+
+	// Multiplexer selects the terminal multiplexer for the session.
+	// "tmux" (default) uses tmux/psmux. "wt" uses Windows Terminal's
+	// native split-pane (only effective on Windows).
+	Multiplexer string `yaml:"multiplexer"`
+}
+
+// IsAutoUpdateCheckEnabled returns true unless the user has explicitly set
+// auto_update_check to false in their config.
+func (c Config) IsAutoUpdateCheckEnabled() bool {
+	if c.AutoUpdateCheck == nil {
+		return true
+	}
+	return *c.AutoUpdateCheck
+}
+
+// MultiplexerBackend returns the configured multiplexer backend,
+// falling back to "tmux" if not set.
+func (c Config) MultiplexerBackend() string {
+	if c.Multiplexer == "" {
+		return "tmux"
+	}
+	return c.Multiplexer
 }
 
 // LoginCommand returns the configured AWS SSO login command, falling back
@@ -118,6 +155,23 @@ func (c Config) ResolveK8sSecretName(namespace string) string {
 	})
 }
 
+// ResolveExternalSecretName builds the ExternalSecret CRD object name for
+// a given namespace using ExternalSecretNameTemplate. Falls back to
+// K8sSecretNameTemplate (or SecretNameTemplate if that is also empty) so
+// that existing configs keep working without changes.
+func (c Config) ResolveExternalSecretName(namespace string) string {
+	template := c.ExternalSecretNameTemplate
+	if template == "" {
+		template = c.K8sSecretNameTemplate
+	}
+	if template == "" {
+		template = c.SecretNameTemplate
+	}
+	return kctl.ResolveTemplate(template, map[string]string{
+		"namespace": namespace,
+	})
+}
+
 // DefaultPath returns the default config file location: ~/.kctl-tui/config.yaml
 func DefaultPath() (string, error) {
 	home, err := os.UserHomeDir()

internal/config/config_test.go

@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)
+// Licensed under the MIT License. See LICENSE file in project root for details.
+
 package config
 
 import (
@@ -109,6 +112,33 @@ func TestResolveK8sSecretName_FallsBackToSecretNameTemplate(t *testing.T) {
 	}
 }
 
+func TestResolveExternalSecretName_ExplicitTemplate(t *testing.T) {
+	cfg := Config{ExternalSecretNameTemplate: "{namespace}"}
+	got := cfg.ResolveExternalSecretName("job-apply")
+	want := "job-apply"
+	if got != want {
+		t.Fatalf("got %q, want %q", got, want)
+	}
+}
+
+func TestResolveExternalSecretName_FallsBackToK8sSecretNameTemplate(t *testing.T) {
+	cfg := Config{K8sSecretNameTemplate: "{namespace}-common-secrets"}
+	got := cfg.ResolveExternalSecretName("job-apply")
+	want := "job-apply-common-secrets"
+	if got != want {
+		t.Fatalf("got %q, want %q", got, want)
+	}
+}
+
+func TestResolveExternalSecretName_FallsBackToSecretNameTemplate(t *testing.T) {
+	cfg := Config{SecretNameTemplate: "tf-{namespace}-{env}-secrets"}
+	got := cfg.ResolveExternalSecretName("job-apply")
+	want := "tf-job-apply-{env}-secrets" // {env} intentionally left unresolved
+	if got != want {
+		t.Fatalf("got %q, want %q", got, want)
+	}
+}
+
 func TestLoginCommand_DefaultsWhenUnset(t *testing.T) {
 	cfg := Config{}
 	if got := cfg.LoginCommand(); got != DefaultAWSSSOLoginCommand {

internal/kctl/diff.go

@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)
+// Licensed under the MIT License. See LICENSE file in project root for details.
+
 package kctl
 
 import "sort"

internal/kctl/diff_test.go

@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)
+// Licensed under the MIT License. See LICENSE file in project root for details.
+
 package kctl
 
 import "testing"

internal/kctl/labels.go

@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)
+// Licensed under the MIT License. See LICENSE file in project root for details.
+
 package kctl
 
 import "sort"

internal/kctl/labels_test.go

@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)
+// Licensed under the MIT License. See LICENSE file in project root for details.
+
 package kctl
 
 import (

internal/kctl/template.go

@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)
+// Licensed under the MIT License. See LICENSE file in project root for details.
+
 package kctl
 
 import "strings"

internal/kctl/template_test.go

@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)
+// Licensed under the MIT License. See LICENSE file in project root for details.
+
 package kctl
 
 import "testing"

internal/kubeexec/kubeexec.go

@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)
+// Licensed under the MIT License. See LICENSE file in project root for details.
+
 // Package kubeexec wraps kubectl/aws-cli invocations used by kctl-tui.
 // All functions here have side effects (they run external processes) and
 // are therefore not covered by unit tests; the pure logic they depend on

internal/kubeexec/log.go

@@ -1,3 +1,6 @@
+// Copyright (c) 2026 Stefan Koelle (https://stefankoelle.de)
+// Licensed under the MIT License. See LICENSE file in project root for details.
+
 package kubeexec
 
 import (
@@ -26,6 +29,16 @@ func SetVerbose(enabled bool, w io.Writer) {
 	}
 }
 
+// VerboseLog writes a message to the verbose log if enabled.
+func VerboseLog(format string, args ...interface{}) {
+	mu.Lock()
+	defer mu.Unlock()
+	if !verbose {
+		return
+	}
+	fmt.Fprintf(logOut, format, args...)
+}
+
 func logCmd(name string, args ...string) {
 	mu.Lock()
 	defer mu.Unlock()

renovate.json

@@ -0,0 +1,42 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": ["config:recommended"],
+  "schedule": ["before 6am on Monday"],
+  "packageRules": [
+    {
+      "matchManagers": ["github-actions"],
+      "matchUpdateTypes": ["minor", "patch"],
+      "groupName": "GitHub Actions",
+      "automerge": true
+    },
+    {
+      "matchManagers": ["github-actions"],
+      "matchUpdateTypes": ["major"],
+      "groupName": "GitHub Actions (major)",
+      "labels": ["major-update"],
+      "automerge": false
+    },
+    {
+      "matchManagers": ["gomod"],
+      "matchUpdateTypes": ["minor", "patch"],
+      "groupName": "Go dependencies",
+      "automerge": true
+    },
+    {
+      "matchManagers": ["gomod"],
+      "matchUpdateTypes": ["major"],
+      "groupName": "Go dependencies (major)",
+      "labels": ["major-update"],
+      "automerge": false
+    },
+    {
+      "matchUpdateTypes": ["minor", "patch"],
+      "automerge": true
+    },
+    {
+      "matchUpdateTypes": ["major"],
+      "labels": ["major-update"],
+      "automerge": false
+    }
+  ]
+}