2 files changed, 61 insertions, 0 deletions
diff --git a/modules/by-name/co/constants/module.nix b/modules/by-name/co/constants/module.nix
new file mode 100644
index 0000000..a28ea0c
--- /dev/null
+++ b/modules/by-name/co/constants/module.nix
@@ -0,0 +1,43 @@
+# This file is inspired by the `nixos/modules/misc/ids.nix`
+# file in nixpkgs.
+{lib, ...}: {
+  options.vhack.constants = {
+    ids.uids = lib.mkOption {
+      internal = true;
+      description = ''
+        The user IDs used in the vhack.eu nixos config.
+      '';
+      type = lib.types.attrsOf lib.types.int;
+    };
+    ids.gids = lib.mkOption {
+      internal = true;
+      description = ''
+        The group IDs used in the vhack.eu nixos config.
+      '';
+      type = lib.types.attrsOf lib.types.int;
+    };
+  };
+
+  config.vhack.constants = {
+    ids.uids = {
+      acme = 328;
+      dhcpcd = 329;
+      nscd = 330;
+      sshd = 331;
+      systemd-oom = 332;
+
+      # As per the NixOS file, the uids should not be greater or equal to 400;
+    };
+    ids.gids = {
+      acme = 328;
+      dhcpcd = 329;
+      nscd = 330;
+      sshd = 331;
+      systemd-oom = 332;
+      resolvconf = 333; # This group is not matched to an user?
+      systemd-coredump = 151; # matches systemd-coredump user
+
+      # The gid should match the uid. Thus should not be >= 400;
+    };
+  };
+}
diff --git a/modules/by-name/co/coredump/module.nix b/modules/by-name/co/coredump/module.nix
new file mode 100644
index 0000000..ce28ed9
--- /dev/null
+++ b/modules/by-name/co/coredump/module.nix
@@ -0,0 +1,18 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  cfg = config.vhack.systemd.coredump;
+in {
+  options.vhack.systemd.coredump = {
+    # NOTE(@bpeetz): Enabled by default, because that is what NixOS also does. <2024-12-25>
+    enable = (lib.mkEnableOption "oomd") // {default = true;};
+  };
+
+  config = lib.mkIf cfg.enable {
+    users = {
+      groups.systemd-coredump.gid = config.vhack.constants.ids.gids.systemd-coredump;
+    };
+  };
+}