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Frank b441cfda56 docs(DE): full redesign sweep — desk profiles, keybinds, noctalia v5, handy fleet wiring, incident log

- niri: index/config-tree rework, displays.md desk-profile rewrite,
  tips/action-reference/default-bindings refresh (26.04),
  generated keybindings.md (119 bindings)
- noctalia-shell.md: settings.toml lives in ~/.local/state, taskbar
  widget, v5 keybind table (Mod+D/Mod+V/Alt+Tab)
- handy.md: NEW; live nested store shape, fleet endpoint, known
  thinking-model empty-content breaker + verified cure
- log.md: DE redesign entry + pam_faillock sudo-lockout incident

2026-10-09 14:42:08 -07:00

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Helpful Tips

1. Mod key

Use Mod instead of Super for configs that work both on TTY and in nested windows.

2. No shell expansion in spawn

spawn does not expand $VAR or ~. Use spawn-sh or wrap in sh -c.

3. Config reload

Do NOT send SIGHUP to the niri process (kill -s SIGHUP $(pgrep -f 'niri --session')) — it causes a full session logout/restart instead of a live config reload.

Correct reload options, in order of preference:

niri msg action load-config-file — live reload without disrupting the session (preferred).
Log out and back in (safe, guaranteed clean reload).
Let the user decide when to reload; agents should modify config files without auto-reloading.

Niri reads ~/.config/niri/config.kdl (or config.kdl relative to its CWD). Split config lives in ~/.config/niri/cfg/ — each .kdl file is included from the main config, so a reload picks up edits to any included module.

26.04 Config Loading Features

niri msg action load-config-file --path <file> switches configs at runtime (26.04). It includes:

optional=true support — allows loading configs that may not exist
~ expansion — tilde paths are expanded to the niri user's home directory

Vim-like keys (H/J/K/L) are bound by default alongside arrow keys.

5. Programmatic invocation

Every action can be invoked via niri msg action <action-name>.

26.04 IPC Enhancements

niri msg layers — lists layer-shell namespaces per output
niri msg casts — lists active PipeWire screencasts
Escape cancels drag-and-drop operations
Duplicate-bind parse errors now show the first definition in the file

Pointer Behavior

Pointer warps across the screen during view-scroll gestures.

Key Bindings Syntax — Configuration details
Action Reference — All available actions

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