My nix-darwin and NixOS config
fix: symlink Applications on nix-darwin
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hosts/macmini/default.nix
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hosts/macmini/default.nix
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modules/darwin/launch-services.nix
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modules/darwin/launch-services.nix
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{ config, lib, pkgs, ... }:
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##############################################################################
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# Launch Services Management for macOS
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#
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# Automatically rebuilds the Launch Services database after system activation
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# to ensure Nix-installed applications are properly registered with macOS.
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#
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# This solves issues where apps show "can't be opened" errors because
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# macOS doesn't recognize apps from the Nix store or symlinked locations.
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##############################################################################
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{
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system.activationScripts.postActivation.text = lib.mkAfter ''
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echo "Rebuilding Launch Services database..." >&2
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# Clear and rebuild the Launch Services database
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# This ensures all Nix apps are properly registered with macOS
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/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister \
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-kill -r -domain local -domain system -domain user
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# Reset Launchpad cache to show updated apps
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# This is necessary for apps to appear in Spotlight and Launchpad
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find 2>/dev/null /private/var/folders/ -type d -name com.apple.dock.launchpad -exec rm -rf {} + || true
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# Restart Dock to apply changes
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killall Dock || true
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echo "Launch Services database rebuilt successfully" >&2
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'';
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}