Add eirene bare metal config

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/common/configs/git/default.nix

@@ -0,0 +1,7 @@
+{
+  programs.git = {
+    enable = true;
+    lfs.enable = true;
+  };
+}
+

hosts/common/configs/gpg-agent/default.nix

@@ -0,0 +1,6 @@
+{ pkgs, ... }:
+
+{
+  programs.gnupg.agent.enable = true;
+}
+

hosts/common/configs/nix-ld/default.nix

@@ -0,0 +1,7 @@
+{
+  programs.nix-ld = {
+    enable = true;
+    libraries = [ ];
+  };
+}
+

hosts/common/configs/ssh/default.nix

@@ -0,0 +1,8 @@
+{
+  programs.ssh = {
+    knownHosts = {
+      eirene.publicKeyFile = ../../../eirene/secrets/ssh_host_ed25519_key.pub;
+    };
+  };
+}
+

hosts/common/default.nix

@@ -7,6 +7,10 @@
     ./configs/zsh
     ./configs/neovim
     ./configs/tmux
+    ./configs/ssh
+    ./configs/nix-ld
+    ./configs/git
+    ./configs/gpg-agent
   ];
 
   fileSystems."/persist".neededForBoot = true;
@@ -14,7 +18,7 @@
   boot = {
     loader = {
       systemd-boot.enable = true;
-      timeout = 0;
+      timeout = 3;
       efi.canTouchEfiVariables = true;
     };
 
@@ -23,6 +27,7 @@
       postDeviceCommands = lib.mkAfter (builtins.readFile ./scripts/impermanence.sh);
     };
 
+    supportedFilesystems = [ "btrfs" "ntfs" ];
     kernelParams = [ "loglevel=3" "quiet" ];
     consoleLogLevel = 0;
   };
@@ -45,12 +50,11 @@
     };
 
     systemPackages = with pkgs; [
-      nano
       tree
-      git
       ranger
       btop
       fastfetch
+      sops
     ];
   };
 
@@ -62,16 +66,6 @@
     defaultUserShell = pkgs.zsh;
   };
 
-  programs = {
-    nix-ld = {
-      enable = true;
-      libraries = [ ];
-    };
-    ssh.knownHosts = {
-      eirene.publicKeyFile = ../eirene/secrets/ssh_host_ed25519_key.pub;
-    };
-  };
-
   security.sudo.extraConfig = ''
     Defaults lecture = never
   '';
@@ -97,6 +91,10 @@
     stateVersion = "24.05";
   };
 
-  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  nix = {
+    settings.experimental-features = [ "nix-command" "flakes" ];
+    gc.automatic = true;
+  };
+
   nixpkgs.config.allowUnfree = true;
 }

hosts/common/scripts/impermanence.sh

@@ -1,3 +1,5 @@
+#!/bin/sh
+
 delete_subvolume_recursively() {
   IFS=$'\n'
   for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do