Remove Guix compatibility code.

Remove:
- systemd definition;
- guixbuilder users;
- guixbuild groud;
- guix binary symlink;
- mr repository configurations;
- gc.sh instructions;
- Emacs configuration;
- environment variables.

1 files changed, 8 insertions, 56 deletions

diff --git a/nixos/configuration.nix b/nixos/configuration.nix
index a7a3006..036a3da 100644
--- a/nixos/configuration.nix
+++ b/nixos/configuration.nix
@@ -424,62 +424,14 @@ in
   users = {
     mutableUsers = false;
 
-    extraUsers =
-      let
-        andrehUser =  {
-          andreh = {
-            isNormalUser = true;
-            uid = 1000;
-            description = "EuAndreh";
-            extraGroups = [ "wheel" "networkmanager" "docker" ];
-            # Generated with:
-            # mkpasswd -m sha-512 > password-file.txt
-            passwordFile = localConfiguration.passwordFile;
-          };
-        };
-        # From the Guix manual:
-        # https://www.gnu.org/software/guix/manual/en/html_node/Build-Environment-Setup.html#Build-Environment-Setup
-        buildUser = (i:
-          {
-            "guixbuilder${i}" = {                   # guixbuilder$i
-              group = "guixbuild";                  # -g guixbuild
-              extraGroups = ["guixbuild"];          # -G guixbuild
-              home = "/var/empty";                  # -d /var/empty
-              shell = pkgs.nologin;                 # -s `which nologin`
-              description = "Guix build user ${i}"; # -c "Guix buid user $i"
-              isSystemUser = true;                  # --system
-            };
-          }
-        );
-      in
-        # merge all users
-        pkgs.lib.fold (str: acc: acc // buildUser str)
-                      andrehUser
-                      # for i in `seq -w 1 10`
-                      (map (pkgs.lib.fixedWidthNumber 2) (builtins.genList (n: n+1) 10));
-
-    extraGroups.guixbuild = {
-      name = "guixbuild";
-    };
-  };
-
-  systemd = {
-    services = {
-      # Derived from Guix guix-daemon.service.in
-      # https://git.savannah.gnu.org/cgit/guix.git/tree/etc/guix-daemon.service.in?id=00c86a888488b16ce30634d3a3a9d871ed6734a2
-     guix-daemon = {
-       enable = false;
-       description = "Build daemon for GNU Guix";
-       serviceConfig = {
-         ExecStart = "/var/guix/profiles/per-user/root/guix-profile/bin/guix-daemon --build-users-group=guixbuild";
-         Environment="GUIX_LOCPATH=/root/.guix-profile/lib/locale";
-         RemainAfterExit="yes";
-         StandardOutput="syslog";
-         StandardError="syslog";
-         TaskMax= "8192";
-       };
-       wantedBy = [ "multi-user.target" ];
-     };
+    extraUsers.andreh = {
+      isNormalUser = true;
+      uid = 1000;
+      description = "EuAndreh";
+      extraGroups = [ "wheel" "networkmanager" "docker" ];
+      # Generated with:
+      # mkpasswd -m sha-512 > password-file.txt
+      passwordFile = localConfiguration.passwordFile;
     };
   };