diff --git a/modules/common/vaultwarden.nix b/modules/common/vaultwarden.nix
new file mode 100644
index 0000000..40047dd
--- /dev/null
+++ b/modules/common/vaultwarden.nix
@@ -0,0 +1,161 @@
+{ base, pkgs, drive_paths, lib, config, ... }:
+if drive_paths == null
+then {}
+else lib.recursiveUpdate {
+  environment.systemPackages = with pkgs; [ vaultwarden ];
+
+  services.vaultwarden.enable = true;
+  services.vaultwarden.dbBackend = "postgresql";
+
+  sops.secrets = lib.pipe [
+    "ADMIN_TOKEN"
+    "SMTP_PASSWORD"
+    "YUBICO_SECRET_KEY"
+    "HIBP_API_KEY"
+  ] [
+    (map (name: {
+      inherit name;
+      value = {
+        mode = "0400";
+        owner = config.users.users.root.name;
+        group = config.users.users.root.group;
+        sopsFile = ../../secrets/vaultwarden.json;
+        format = "json";
+      };
+    }))
+    builtins.listToAttrs
+  ];
+} (let isDerived = base != null;
+in if isDerived
+# We cannot use mkIf as both sides are evaluated no matter the condition value
+# Given we use base as an attrset, mkIf will error if base is null in here
+then
+  with lib;
+  let
+    cfg = config.services.vaultwarden;
+
+    vaultwarden_config = {
+      # Server Settings
+      DOMAIN = "https://passwords.clicks.codes";
+      ROCKET_ADDRESS = "127.0.0.1";
+      ROCKET_PORT = 8452;
+
+      # General Settings
+      SIGNUPS_ALLOWED = false;
+      INVITATIONS_ALLOWED = true;
+      SIGNUPS_DOMAINS_WHITELIST =
+        "clicks.codes,coded.codes,thecoded.prof,starrysky.fyi,hopescaramels.com,pinea.dev,trans.gg";
+      SIGNUPS_VERIFY = true;
+
+      RSA_KEY_FILENAME =
+        "${drive_paths.External1000SSD.path}/bitwarden/rsa_key";
+      ICON_CACHE_FOLDER =
+        "${drive_paths.External1000SSD.path}/bitwarden/icon_cache";
+      ATTACHMENTS_FOLDER =
+        "${drive_paths.External4000HDD.path}/bitwarden/attachments";
+      SENDS_FOLDER = "${drive_paths.External4000HDD.path}/bitwarden/sends";
+      TMP_FOLDER = "${drive_paths.External4000HDD.path}/bitwarden/tmp";
+
+      DISABLE_2FA_REMEMBER = true;
+
+      # Admin Account
+      ADMIN_TOKEN = "!!ADMIN_TOKEN!!";
+
+      # Database Settings
+      DATABASE_URL =
+        "postgresql://vaultwarden:!!clicks_bitwarden_db_secret!!@127.0.0.1:${
+          toString config.services.postgresql.port
+        }/vaultwarden";
+
+      # Mail Settings
+      SMTP_HOST = "mail.clicks.codes";
+      SMTP_FROM = "bitwarden@clicks.codes";
+      SMTP_FROM_NAME = "Clicks Bitwarden";
+      SMTP_SECURITY = "starttls";
+      SMTP_PORT = 587;
+
+      SMTP_USERNAME = "bitwarden@clicks.codes";
+      SMTP_PASSWORD = "!!SMTP_PASSWORD!!";
+
+      REQUIRE_DEVICE_EMAIL = true;
+
+      IP_HEADER = "X-Forwarded-For";
+
+      # YubiKey Settings
+      YUBICO_CLIENT_ID = "89788";
+      YUBICO_SECRET_KEY = "!!YUBICO_SECRET_KEY!!";
+
+      # TODO: Buy a license
+      # HIBP Settings
+      # HIBP_API_KEY="!!HIBP_API_KEY!!";
+
+      ORG_ENABLE_GROUPS = true;
+      # I have looked at the risks. They seem relatively small in comparison to the utility
+      # (stuff like sync issues if you don't refresh your page)
+      # Also a general lack of real-world testing. Which, honestly, doesn't
+      # seem too bad. Please contact me *immediately* upon noticing issues
+      # as I want to make sure that as little as possible is lost if we need
+      # to restore from backups (although I doubt it'll come to that)
+    };
+
+    nameToEnvVar = name:
+      let
+        parts = builtins.split "([A-Z0-9]+)" name;
+        partsToEnvVar = parts:
+          foldl' (key: x:
+            let last = stringLength key - 1;
+            in if isList x then
+              key
+              + optionalString (key != "" && substring last 1 key != "_") "_"
+              + head x
+            else if key != "" && elem (substring 0 1 x)
+            lowerChars then # to handle e.g. [ "disable" [ "2FAR" ] "emember" ]
+              substring 0 last key
+              + optionalString (substring (last - 1) 1 key != "_") "_"
+              + substring last 1 key + toUpper x
+            else
+              key + toUpper x) "" parts;
+      in if builtins.match "[A-Z0-9_]+" name != null then
+        name
+      else
+        partsToEnvVar parts;
+
+    # Due to the different naming schemes allowed for config keys,
+    # we can only check for values consistently after converting them to their corresponding environment variable name.
+    configEnv = let
+      configEnv = concatMapAttrs (name: value:
+        optionalAttrs (value != null) {
+          ${nameToEnvVar name} =
+            if isBool value then boolToString value else toString value;
+        }) vaultwarden_config;
+    in {
+      DATA_FOLDER = "/var/lib/bitwarden_rs";
+    } // optionalAttrs (!(configEnv ? WEB_VAULT_ENABLED)
+      || configEnv.WEB_VAULT_ENABLED == "true") {
+        WEB_VAULT_FOLDER = "${cfg.webVaultPackage}/share/vaultwarden/vault";
+      } // configEnv;
+
+    configFile = pkgs.writeText "vaultwarden.env" (concatStrings (mapAttrsToList
+      (name: value: ''
+        ${name}=${value}
+      '') configEnv));
+  in {
+    scalpel.trafos."vaultwarden.env" = {
+      source = toString configFile;
+      matchers."ADMIN_TOKEN".secret = config.sops.secrets.ADMIN_TOKEN.path;
+      matchers."SMTP_PASSWORD".secret = config.sops.secrets.SMTP_PASSWORD.path;
+      matchers."YUBICO_SECRET_KEY".secret =
+        config.sops.secrets.YUBICO_SECRET_KEY.path;
+      matchers."HIBP_API_KEY".secret = config.sops.secrets.HIBP_API_KEY.path;
+      matchers."clicks_bitwarden_db_secret".secret =
+        config.sops.secrets.clicks_bitwarden_db_password.path;
+      owner = config.users.users.vaultwarden.name;
+      group = config.users.groups.vaultwarden.name;
+      mode = "0400";
+    };
+
+    services.vaultwarden.environmentFile =
+      config.scalpel.trafos."vaultwarden.env".destination;
+  }
+else
+  { })