new version

deploy/nixos/download.nix

@@ -58,6 +58,12 @@ in
       description = "Maximum fraction (0.0-1.0) of the storage filesystem that may be used; uploads are rejected above this.";
     };
 
+    keyLength = lib.mkOption {
+      type = lib.types.ints.positive;
+      default = 8;
+      description = "Length in characters of the upload/download key token.";
+    };
+
     publicBaseUrl = lib.mkOption {
       type = lib.types.nullOr lib.types.str;
       default = null;
@@ -134,6 +140,7 @@ in
             "MAX_FILE_SIZE=${cfg.maxFileSize}"
             "FILE_TTL_MS=${toString cfg.fileTtlMs}"
             "MAX_STORAGE_USAGE=${toString cfg.maxStorageUsage}"
+            "KEY_LENGTH=${toString cfg.keyLength}"
           ]
           ++ lib.optionals (cfg.publicBaseUrl != null) [ "PUBLIC_BASE_URL=${cfg.publicBaseUrl}" ]
           ++ lib.optionals cfg.trustProxy [ "TRUST_PROXY=1" ];