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moonarch/DECISIONS.md
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Details
feat: add battery conservation mode with Waybar toggle 
Laptops with charge_control_end_threshold support get a click-to-toggle
on the battery module (80% ↔ 100%). A ♥ icon appears when conservation
is active, hidden when inactive. State persists across reboots via
systemd oneshot service. udev rule grants wheel group write access
so no sudo is needed for toggling.
2026-04-08 09:55:46 +02:00

11 KiB
Raw Blame History

Decisions

2026-04-08 – Battery conservation mode: udev + sysfs + Waybar toggle

  • Who: Dominik, ClaudeCode
  • Why: Laptops with charge_control_end_threshold support benefit from limiting charge to 80% to extend battery lifespan. Needed a user-friendly toggle without requiring sudo.
  • Tradeoffs: udev RUN approach for permissions (group wheel gets write access) vs polkit/pkexec (password prompt on every toggle). Chose udev for seamless UX. State persisted in /var/lib/moonarch/ (system-wide, not per-user) — acceptable since charge threshold is a hardware setting, not a user preference. Fixed 80% threshold instead of configurable — KISS, matches industry standard.
  • How: udev rule grants wheel group write on charge_control_end_threshold. Toggle script writes sysfs + state file. systemd oneshot service restores on boot. Waybar shows ♥ icon when active, hidden when inactive. Click on battery module toggles.

2026-04-07 – Walker theme: gtk-inherit → moonarch with fixed colors

  • Who: Dominik, ClaudeCode
  • Why: gtk-inherit theme relied on GTK4 color inheritance which works but doesn't update live when switching GTK themes (Walker service needs restart). Explicit color definitions make the theme self-contained and predictable.
  • Tradeoffs: Colors no longer auto-follow GTK theme changes. Acceptable since moonarch uses a fixed Catppuccin Mocha palette anyway.
  • How: Renamed theme to moonarch, added @define-color with Colloid-Grey-Dark-Catppuccin values, reduced border/shadow weight.

2026-04-07 – Migrate archinstall config to v4 format

  • Who: Dominik, ClaudeCode
  • Why: archinstall v4.1 introduced new canonical key names. Old keys (audio_config, bootloader, custom-commands) are soft-deprecated and auto-mapped, but custom-commands (hyphen) vs custom_commands (underscore) was risky.
  • Tradeoffs: Config now requires archinstall v4+. Older ISOs with v2/v3 may not parse the new keys.
  • How: Migrated audio_config into app_config, bootloader into bootloader_config, custom-commands to custom_commands, gfx_driver value updated.

2026-04-07 – kanshi config: no ABOUTME, no overwrite on transform

  • Who: Dominik, ClaudeCode
  • Why: ABOUTME comments in kanshi config broke the profile parser in wdisplays-persistent store.c, preventing config saves. Additionally, transform.sh was overwriting user display profiles on every run.
  • Tradeoffs: kanshi default template is now empty (no comments). Users get no guidance in the seed file, but wdisplays-persistent provides the GUI for config management.
  • How: Removed ABOUTME from defaults/xdg/kanshi/config. Added skip logic in transform.sh to preserve existing kanshi user configs.

2026-04-07 – Move paru repo config into moonarch.install hook

  • Who: Dominik, ClaudeCode
  • Why: paru PKGBUILD repo config was only set up by post-install.sh and transform.sh. If paru updated and overwrote /etc/paru.conf, or the config was missing on existing systems, moonarch-git couldn't update itself — bootstrap loop where the fix requires the package that delivers the fix.
  • Tradeoffs: Config setup is now in two places: moonarch.install (for updates) and post-install.sh (for first install before moonarch-git exists). Acceptable duplication to break the circular dependency.
  • How: Added paru repo config (Mode=arp + [moonarch-pkgbuilds] section) to moonarch.install post_install/post_upgrade hook. Kept post-install.sh setup for bootstrap. Removed redundant setup from transform.sh.

2026-04-02 – Rename paru PKGBUILD repo, move config to /etc/paru.conf

  • Who: Dominik, Ragnar
  • Why: paru PKGBUILD repo and pacman package registry both used [moonarch] as section name. When pkgver-bot pushed version bumps, paru tried to resolve PKGBUILD targets (moongreet-git, moonlock-git) against the pacman repo — which only contains moonarch-git — causing "nicht alle benötigten Pakete gefunden" errors.
  • Tradeoffs: Renaming the PKGBUILD repo section means existing installations need a one-time manual fix. Using /etc/paru.conf instead of ~/.config/paru/paru.conf is consistent with moonarch's system-wide config philosophy.
  • How: Renamed PKGBUILD repo section from [moonarch] to [moonarch-pkgbuilds]. Moved paru config (Mode + repo) from user-level ~/.config/paru/paru.conf to system-wide /etc/paru.conf. Updated post-install.sh accordingly.

2026-04-01 – Replace dunst with swaync as notification daemon

  • Who: Dominik, Ragnar
  • Why: Dunst lacks wp_fractional_scale_v1 support, causing aliased/jagged font rendering on external monitors in mixed-DPI setups (laptop eDP-1 at 2.5x, externals at 1x). Confirmed by testing: removing fractional scaling fixed the issue. swaync uses GTK4 which handles fractional scaling natively.
  • Tradeoffs: swaync is heavier than dunst (GTK4 + libadwaita dependency). Loses dunstctl CLI (replaced by swaync-client). Gains notification center panel with DnD toggle, grouping, MPRIS widget support. Waybar already had swaync-client integration with exec-if guard.
  • How: Replaced dunst with swaync in packages/official.txt and archinstall config. Niri spawn-at-startup updated. Waybar dunstctl widget removed (swaync-client widget already present). New swaync config.json and style.css based on catppuccin/swaync upstream theme with Lavender accent instead of Blue.

2026-03-31 – Audit: shell script quoting fixes, PKGBUILD permissions

  • Who: Ragnar, Dom
  • Why: Security audit found command injection risk in moonarch-cpugov (unquoted array expansion with pkexec), word-splitting in moonarch-btnote (upower output from Bluetooth devices), and nmcli argument injection in moonarch-vpn. PKGBUILD for moongreet had world-readable cache dir.
  • Tradeoffs: eval in cpugov is safe because COMMANDS values are hardcoded string literals, not user input. Alternative (function dispatch) would be cleaner but over-engineered for 3 fixed entries. moonarch-btnote switched from for-loop to while+read with process substitution to avoid subshell.
  • How: (1) eval "${COMMANDS[$choice]}" in cpugov. (2) while IFS= read -r + process substitution + quoted $DEVICE_DATA in btnote. (3) -- guard before $connection in vpn nmcli calls. (4) install -dm700 for moongreet cache dirs in PKGBUILD. (5) else err logging in post-install.sh when USER_DEFAULTS missing.

2026-03-29 – /opt/moonarch stays root-owned, no chown to user

  • Who: Dominik, Ragnar
  • Why: Multi-user system — chown to UID 1000 locks out other users from moonarch-update
  • Tradeoffs: sudo required for git operations in update.sh vs. simpler user-owned repo
  • How: Repo stays at /opt/moonarch owned by root:root. update.sh uses sudo git for fetch/pull. All scripts already use sudo for system-level operations, so this is consistent.

2026-03-29 – Add transform.sh for existing Arch+Wayland systems

  • Who: Dominik, Ragnar
  • Why: Users with existing Arch+Wayland setups should be able to adopt Moonarch without reinstalling
  • Tradeoffs: Hard overwrite of all configs (user + system) vs. selective/merge approach — chose hard overwrite for simplicity and consistency
  • How: New transform.sh with pre-flight summary, backup, DM conflict resolution, and --dry-run flag. Shared helpers extracted to lib.sh.

2026-03-29 – Package moonarch as moonarch-git PKGBUILD

  • Who: Dominik, Ragnar
  • Why: System artifacts (XDG configs, helper scripts, zsh config, wallpaper) should be managed by pacman for clean deployment, versioning, rollback, and deinstallation
  • Tradeoffs: /etc/xdg/ configs NOT in backup= (moonarch philosophy: system defaults flow through, users override in ~/.config/). /etc/greetd/ and /etc/moongreet/ NOT owned by package (owned by greetd/moongreet-git, overwritten via .install hook). Helper scripts move from /usr/local/bin/ to /usr/bin/ (FHS for package-managed files)
  • How: moonarch-git PKGBUILD in moonarch-pkgbuilds repo. sweet-cursors-git as separate package. moonarch-update simplified (no git-sync, pacman handles file deployment). Installer scripts (post-install.sh, transform.sh) remain for orchestration, will be refactored in a follow-up to delegate file deployment to paru -S moonarch-git

2026-03-30 – Replace Rofi with Walker as application launcher

  • Who: Dominik, Ragnar
  • Why: Walker is Wayland-native (GTK4 + gtk4-layer-shell), has built-in providers for clipboard, bluetooth, audio (wireplumber), and Niri integration. Reduces custom shell scripts from 8 to 3. Rofi required a Wayland fork (rofi-lbonn-wayland-git) and every applet was a custom bash script.
  • Tradeoffs: Walker is newer/less battle-tested than Rofi. Requires separate Elephant daemon with per-provider packages. Dmenu mode lacks Rofi's -a/-u (active/urgent) and -mesg flags. Settings menu (moonarch-setmen) dropped entirely — apps are findable via Walker's app search.
  • How: Walker + Elephant as systemd user services. Native providers replace 5 rofi scripts (launcher, clipboard, bluetooth, volume, sink-switcher). 3 scripts ported to walker dmenu (vpn, cpugov, sink-switcher). Walker theme inherits GTK4 system theme colors (gtk-inherit). Old rofi configs preserved in legacy/rofi/.

2026-03-30 – Use nm-applet as VPN secret agent, add WireGuard support

  • Who: Dominik, Ragnar
  • Why: VPN auth previously spawned a foot terminal for nmcli --ask, which was fragile and ugly. WireGuard connections were invisible to the VPN script and Waybar indicator because both only checked for OpenVPN (tun0 / vpn type).
  • Tradeoffs: nm-applet adds a tray indicator (mitigated with --indicator mode which is minimal). Requires nm-applet running at session start. Alternative was gnome-keyring or a custom secret agent — nm-applet is simpler and handles all NM secret types.
  • How: nm-applet started via niri spawn-at-startup. moonarch-vpn rewritten to support both vpn and wireguard types, uses nm-applet for auth instead of foot terminal, sends notify-send for connect/disconnect results. Waybar VPN module uses nmcli active connection check instead of /proc/sys/net/ipv4/conf/tun0, plus RTMIN+9 signal for instant updates after toggle.

2026-03-30 – Standardize GTK theme to Colloid-Grey-Dark-Catppuccin

  • Who: Dominik, Ragnar
  • Why: gsettings had Colloid-Dark-Catppuccin while config files had Colloid-Catppuccin — inconsistent. Grey accent matches the icon theme (Colloid-Grey-Catppuccin-Dark). Explicit -Dark variant is more reliable than depending on prefer-dark color-scheme setting.
  • Tradeoffs: Explicit dark locks out light mode toggle — acceptable since Moonarch is dark-only by design.
  • How: Updated transform.sh, post-install.sh, gtk-3.0/settings.ini, and gsettings to Colloid-Grey-Dark-Catppuccin. GTK4 symlinks updated accordingly.