Added
- A real, working pacman backend for Arch Linux, alongside Homebrew —
the launcher now works without Homebrew installed at all.
BREW_LAUNCHER_BACKEND (auto/homebrew/pacman) picks which
package manager it talks to; auto — the default — prefers Homebrew
whenever it's on PATH and only falls back to pacman when it
genuinely isn't, so this changes nothing for any existing Homebrew
user. Every screen — search, marking, categories, favorites,
presets, themes, the details pane — works identically either way;
only where the tool list itself comes from differs. Update and
Update All decline with a plain explanation on the pacman backend
rather than attempting pacman -S/-Syu, since those need root and
this script isn't going to ask for that on its own. Not yet packaged
for Arch (no AUR entry) — for now this means cloning the repo and
running bin/brew-launcher directly. See the README's
"Other package managers" section (tucked inside Configuration —
nothing to read here if you're on Homebrew).
brew install ltdan-88/brew-launcher/brew-launcher
