diff --git a/flake.lock b/flake.lock
index be643a8..9ee891c 100644
--- a/flake.lock
+++ b/flake.lock
@@ -20,6 +20,22 @@
         "type": "github"
       }
     },
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1668681692,
+        "narHash": "sha256-Ht91NGdewz8IQLtWZ9LCeNXMSXHUss+9COoqu6JLmXU=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "009399224d5e398d03b22badca40a37ac85412a1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
     "flake-parts": {
       "inputs": {
         "nixpkgs-lib": [
@@ -41,6 +57,21 @@
         "type": "github"
       }
     },
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1667395993,
+        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
     "haskell-flake": {
       "locked": {
         "lastModified": 1675296942,
@@ -57,6 +88,63 @@
         "type": "github"
       }
     },
+    "lowdown-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1633514407,
+        "narHash": "sha256-Dw32tiMjdK9t3ETl5fzGrutQTzh2rufgZV4A/BbxuD4=",
+        "owner": "kristapsdz",
+        "repo": "lowdown",
+        "rev": "d2c2b44ff6c27b936ec27358a2653caaef8f73b8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "kristapsdz",
+        "repo": "lowdown",
+        "type": "github"
+      }
+    },
+    "mms": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "flake-utils": "flake-utils",
+        "nix": "nix",
+        "nixpkgs": "nixpkgs_3"
+      },
+      "locked": {
+        "lastModified": 1669478601,
+        "narHash": "sha256-IQcS8IPeXvSoIrQRPgtnLxAs0Pkh8wmglDAtqE4ivNo=",
+        "owner": "mkaito",
+        "repo": "nixos-modded-minecraft-servers",
+        "rev": "68f2066499c035fd81c9dacfea2f512d6b0b62e5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "mkaito",
+        "repo": "nixos-modded-minecraft-servers",
+        "type": "github"
+      }
+    },
+    "nix": {
+      "inputs": {
+        "lowdown-src": "lowdown-src",
+        "nixpkgs": "nixpkgs_2",
+        "nixpkgs-regression": "nixpkgs-regression"
+      },
+      "locked": {
+        "lastModified": 1669449054,
+        "narHash": "sha256-aCpXrNpyFH6b1NFYGj2i/HecUvz2vZ88aEyDs1Xj8yM=",
+        "owner": "NixOS",
+        "repo": "nix",
+        "rev": "534332c8a03b64161ec795d1deb2ba3d48f27be1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nix",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1676300157,
@@ -73,6 +161,22 @@
         "type": "github"
       }
     },
+    "nixpkgs-regression": {
+      "locked": {
+        "lastModified": 1643052045,
+        "narHash": "sha256-uGJ0VXIhWKGXxkeNnq4TvV3CIOkUJ3PAoLZ3HMzNVMw=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "215d4d0fd80ca5163643b03a33fde804a29cc1e2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "215d4d0fd80ca5163643b03a33fde804a29cc1e2",
+        "type": "github"
+      }
+    },
     "nixpkgsUnstable": {
       "locked": {
         "lastModified": 1683014792,
@@ -90,6 +194,38 @@
       }
     },
     "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1657693803,
+        "narHash": "sha256-G++2CJ9u0E7NNTAi9n5G8TdDmGJXcIjkJ3NF8cetQB8=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "365e1b3a859281cf11b94f87231adeabbdd878a2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-22.05-small",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1669378442,
+        "narHash": "sha256-nm+4PN0A4SnV0SzEchxrMyKPvI3Ld/aoom4PnHeHucs=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "0faaf0a9bb6dedb69bfd43ac06fb27fadc476c51",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-22.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_4": {
       "locked": {
         "lastModified": 1683028696,
         "narHash": "sha256-saPKTDj+HB9aPvB59wGcJ64CifRuiIt2CHvSbh7UHz8=",
@@ -108,7 +244,8 @@
     "root": {
       "inputs": {
         "arion": "arion",
-        "nixpkgs": "nixpkgs_2",
+        "mms": "mms",
+        "nixpkgs": "nixpkgs_4",
         "nixpkgsUnstable": "nixpkgsUnstable"
       }
     }
diff --git a/flake.nix b/flake.nix
index 0fca916..c9cd7d5 100644
--- a/flake.nix
+++ b/flake.nix
@@ -4,6 +4,7 @@
     nixpkgsUnstable.url = "github:NixOS/nixpkgs/nixos-unstable";
     #nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
     arion.url = "github:hercules-ci/arion";
+    mms.url = "github:mkaito/nixos-modded-minecraft-servers";
   };
 
   outputs = { self, nixpkgs, nixpkgsUnstable, ... }@inputs: 
@@ -41,6 +42,8 @@
             ./modules/containers
             ./modules/keycloak.nix
             ./modules/forgejo.nix
+            ./modules/mumble.nix
+            ./modules/modded-mc.nix
           ];
 
           system.stateVersion = "22.11";
diff --git a/modules/modded-mc.nix b/modules/modded-mc.nix
new file mode 100644
index 0000000..ce272c3
--- /dev/null
+++ b/modules/modded-mc.nix
@@ -0,0 +1,38 @@
+{ pkgs, inputs, ... }:
+{
+  imports = [ inputs.mms.module ];
+
+  environment.systemPackages = with pkgs; [ temurin-jre-bin ];
+
+  services.modded-minecraft-servers = {
+    eula = true;
+
+    # The name will be used for the state folder and system user.
+    # In this case, the folder is `/var/lib/mc-e2es`
+    # and the user `mc-e2es`.
+    instances = {
+      "catpile-v1" = {
+        enable = true;
+
+        jvmPackage = pkgs.temurin-jre-bin;
+
+        # Keys that can access the state of this instance (read/write!) over an rsync module
+        # Leave empty to disable
+        rsyncSSHKeys = [
+          "ssh-rsa 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 jade@monosodium-glutamate-g"
+        ];
+
+        serverConfig = {
+          # Port must be unique
+          server-port = 25566;
+          motd = "Be excellent to eachother";
+
+          white-list = true;
+          spawn-protection = 0;
+          max-tick-time = 5 * 60 * 1000;
+          allow-flight = true;
+        };
+      };
+    };
+  };
+}
diff --git a/modules/mumble.nix b/modules/mumble.nix
new file mode 100644
index 0000000..c1fdd5d
--- /dev/null
+++ b/modules/mumble.nix
@@ -0,0 +1,10 @@
+{ pkgs, ... }:
+{
+  services.murmur = {
+    enable = true;
+    openFirewall = true;
+    registerHostname = "mumble.katzen.cafe";
+    sslKey = "/var/lib/acme/mumble.katzen.cafe/key.pem";
+    sslCert = "/var/lib/acme/mumble.katzen.cafe/cert.pem";
+  };
+}
diff --git a/modules/proxy.nix b/modules/proxy.nix
index d703124..58a966b 100644
--- a/modules/proxy.nix
+++ b/modules/proxy.nix
@@ -31,6 +31,10 @@
         group = "nginx";
         keyType = "rsa4096";
       };
+      "mumble.katzen.cafe" = {
+        group = "murmur";
+        keyType = "rsa4096";
+      };
     };
   };
   services.nginx = {