The picker blocks on user input for however long they take. In that
window niri can destroy a dynamic workspace (its last window closed)
and renumber every later one down, so the pre-pick current["idx"] can
point at the wrong workspace by the time move-window-to-workspace
runs — restoring to the wrong place. The stashed window itself can
also have closed in the meantime, in which case the move/focus calls
would silently no-op. main() now re-reads workspaces/windows after
pick() returns, recomputes the current workspace, and confirms the
chosen window still exists before acting; each bails with a notify
and the documented exit code otherwise. Adds window_exists() as a
pure, tested helper alongside the existing pure functions.
Also: clarify the focus=false comment in niri/config.kdl (it read as
if focus=false caused the problem it actually prevents), and note in
the design doc's Out of scope section that the stash's index-1
pinning is per-output, so a second monitor would need its own
analysis of the Mod+1..9 offset.
Add scripts/gamemode-watch.py, launched at niri startup, which subscribes
to niri's event stream and toggles gamemode whenever a game window
(steam_app_*, RuneLite, gamescope) is open — so Steam games trigger
gamemode with zero per-game setup instead of needing gamemoderun %command%.
'winwatch' is a third reference-counted source alongside feral + manual.
Pure Watcher class is unit-tested; SIGTERM/finally guarantee cleanup so
the watcher stopping never leaves gamemode stuck on.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
funman300