Move cheatsheet to own repo

Changes

2 changed files (+3/-25)

• README.md
  • @@ -4,28 +4,4 @@ My NixOS configuration files for my laptop and the server running this site.
    I generally try to keep these configs simple and pragmatic, so stuff like Home Manager, Firefox extensions, and other 3rd-party flakes are out-of-scope. Besides, I don't want to write hundreds of lines of Nix and spend all day Nixifying my entire setup. This repo is for machine-specific stuff. For my machine-independent configs, see [my dotfiles repo](/dotfiles). Another reason for this separation is so that I can just clone my dotfiles anywhere, not just on NixOS machines. - ## Cheatsheet - - Prefer the new `nix` CLI when possible instead of the old `nix-*` commands. It's way better. - - | Task | Command | - | --- | --- | - | Run program | `nix run nixpkgs#hello` (needs `--` if passing args) | - | Run AppImage | `appimage-run blah.AppImage` | - | Get size of system | `nix path-info -Sh /nix/var/nix/profiles/system` | - | Get size of Nix store | `sqlite3 /nix/var/nix/db/db.sqlite 'SELECT SUM(narSize) FROM ValidPaths'` | - | Get largest packages | `sqlite3 /nix/var/nix/db/db.sqlite 'SELECT * FROM ValidPaths ORDER BY narSize DESC LIMIT 50'` | - | Clean Nix store | `run0 nix-collect-garbage && nix store optimise` | - | Check what depends on path | `nix-store --query --referrers /nix/store/blah` | - | List system generations | `nixos-rebuild list-generations` | - | Switch to generation | `run0 fish -c "nix-env --switch-generation 1234 -p /nix/var/nix/profiles/system && /nix/var/nix/profiles/system/bin/switch-to-configuration switch"` | - | Get changes between system generations | `nix profile diff-closures --profile /nix/var/nix/profiles/system` | - | Build and deploy to current machine | `nixos-rebuild switch --sudo` | - | Build on remote machine and deploy to current machine | `run0 env SSH_AUTH_SOCK=$SSH_AUTH_SOCK nixos-rebuild switch --build-host sipb@boss-baby --use-substitutes` (needs root to add untrusted paths to the Nix store) | - | Build on current machine and deploy to remote machine | `NIX_SSHOPTS="-i ~/.ssh/nixos-rebuild" nixos-rebuild switch --flake .#Unnamed-Server --target-host root@unnamed.website` | - | Build VM from config | `nixos-rebuild build-vm && result/bin/run-* -m 4G -smp 8 -device virtio-vga-gl -display sdl,gl=on` (may need to change all occurrences of the QEMU version in the run script if the config uses a different nixpkgs) | - | Build ISO from config | Add `"/installer/cd-dvd/installation-cd-minimal-new-kernel-no-zfs.nix"` as a module, then run `nix build .#nixosConfigurations.$hostname.config.system.build.isoImage` (may need to comment out some stuff) | - | Install specific version of package | https://lazamar.co.uk/nix-versions/ | - | Run Nix file | `nix eval -f main.nix` | - | Inspect system config in REPL | `nix repl .#nixosConfigurations.$hostname` | - | Fix uv `libstdc++.so.6` error | `LD_LIBRARY_PATH=$NIX_LD_LIBRARY_PATH uv run` | + I also made a [NixOS cheatsheet](https://forgejo.mit.edu/SIPB/nixos-cheatsheet/).
• configuration.nix
  • @@ -23,7 +23,9 @@
    use-xdg-base-directories = true; # Fancy stuff yay experimental-features = [ + # The new CLI is so much nicer "nix-command" + # Still have no idea what a "flake" is "flakes" # Leanify Nix "pipe-operators"