dotfiles

Personal Nix-based dotfiles for macOS (and a Linux server profile).

Architecture

Three layers, each managing a different scope:

Layer	Tool	Scope	Entry point
System (macOS only)	nix-darwin	/etc, launchd, system defaults, Homebrew	nixpkgs/darwin/configuration.nix
User (cross-platform)	home-manager	$HOME, user packages, dotfiles, user launchd agents	nixpkgs/home-manager/mbp.nix (macOS), server.nix (Linux)
Secrets (out-of-repo)	manual / Syncthing	anything matching config/shell/private_* (gitignored)	n/a

nix-darwin is macOS-only — on Linux servers the server profile uses home-manager standalone (no darwin layer).

New machine setup

See docs/new-mbp.md.

Common commands

# Apply everything (home-manager + darwin-rebuild on macOS)
./setup_nix.sh

# Update flake inputs
nix flake update

# Just the darwin system
sudo darwin-rebuild switch --flake .#mbp

# Just home-manager
home-manager switch --flake .#mbp

Profile selection

setup_nix.sh picks the profile from uname:

• macOS → mbp (home-manager + darwin)
• Linux → server (home-manager only)

Override with NIX_PROFILE=foo ./setup_nix.sh.