Restructure into a multi-machine flake and add the enzo laptop

Split the single-host config into a shared minimal base plus opt-in
profiles, and add a second machine (enzo laptop) alongside kusanagi.

- flake: add mkMachine helper; declare nixosConfigurations.kusanagi and
  .enzo; add the disko input; move overlays per-machine.
- common/: minimal base only (boot, networking, tailscale, locale, nix
  settings, neovim editor). Old configuration.nix/programs.nix removed.
- profiles/: coarse opt-in bundles (desktop, dev, apps). kusanagi imports
  all three and stays byte-for-byte identical to the running system.
- machines/kusanagi/: all workstation-only config (ROCm, Scarlett audio,
  optical-disc archiving, NAS mounts, kavita/immich/ollama); hardware
  config moved here unchanged. User stays 'henz'.
- machines/enzo/: new laptop. Declarative LUKS+btrfs via disko
  (LVM-on-LUKS, TPM2+PIN unlock, zram + encrypted swap for
  suspend-then-hibernate); its own minimal niri desktop with
  playback-only audio (no rtkit/jack); user 'hwebs'.

Assisted-by: Claude:claude-opus-4-8

1 files changed, 0 insertions, 98 deletions

diff --git a/programs.nix b/programs.nix
deleted file mode 100644
index 2872cb4..0000000
--- a/programs.nix
+++ /dev/null
@@ -1,98 +0,0 @@
-{ pkgs, ... }:
-
-let
-  # open the MusicBrainz submission URL for the disc in the drive
-  discid = pkgs.writeShellApplication {
-    name = "discid";
-    runtimeInputs = [
-      pkgs.discidurl
-      pkgs.xdg-utils
-    ];
-    text = "discidurl | xargs -r xdg-open";
-  };
-in
-{
-  environment.systemPackages = with pkgs; [
-    discidurl
-    discid
-
-    itch
-    haunt
-
-    # --- wayland
-    mako
-
-    # provides notify-send
-    libnotify
-
-    # website is down :(
-    # makemkv
-
-    (aspellWithDicts (
-      dicts: with dicts; [
-        en
-        en-computers
-        en-science
-      ]
-    ))
-
-    pi-coding-agent
-
-    (buildNpmPackage rec {
-      pname = "pi-acp";
-      version = "0.0.31";
-      src = fetchFromGitHub {
-        owner = "svkozak";
-        repo = "pi-acp";
-        rev = "v${version}";
-        hash = "sha256-bM3V/3fxkY2Ib+OyfT82StIIRSLXGDuYUbt1CZKpTuo=";
-      };
-      npmDepsHash = "sha256-qN+b/tMbnJLkWjotl3XrA0nfZ3KT/mT6gM+n3Qiz8Wk=";
-    })
-
-  ];
-
-  programs = {
-    steam.enable = true;
-    firefox.enable = true;
-
-    gnupg.agent = {
-      enable = true;
-      enableSSHSupport = true;
-    };
-  };
-
-  services = {
-    emacs = {
-      enable = true;
-      package =
-        let
-          emacs = pkgs.emacs-pgtk.overrideAttrs (old: {
-            postInstall = (old.postInstall or "") + ''
-              # I only want the client version
-              rm -f $out/share/applications/emacs.desktop
-            '';
-          });
-        in
-        (pkgs.emacsPackagesFor emacs).withPackages (epkgs: [
-          (epkgs.treesit-grammars.with-grammars (g: [ g.tree-sitter-nix ]))
-          epkgs.vterm
-        ]);
-    };
-
-    ollama = {
-      enable = true;
-      package = pkgs.ollama-rocm;
-      environmentVariables = {
-        HIP_VISIBLE_DEVICES = "0";
-        OLLAMA_CONTEXT_LENGTH = "32768";
-        OLLAMA_KV_CACHE_TYPE = "q8_0";
-      };
-    };
-  };
-
-  services.immich = {
-    enable = true;
-    machine-learning.enable = false;
-  };
-}