manatee: Add host manatee

hosts/manatee/modules/default.nix

@@ -0,0 +1,17 @@
+{ lib, ... }:
+let
+  toModulePath = dir: _: ./. + "/${dir}";
+  filterDirs = dirs: lib.attrsets.filterAttrs (_: type: type == "directory") dirs;
+in
+{
+  imports = lib.mapAttrsToList toModulePath (filterDirs (builtins.readDir ./.));
+
+  config = {
+    mod = {
+      gc.configurationLimit = 10;
+
+      ssh.enable = true;
+      git.enable = true;
+    };
+  };
+}