12 matrix = lib.mkOption {
13 type = types.nullOr types.str;
16 github = lib.mkOption {
17 type = types.nullOr types.str;
20 githubId = lib.mkOption {
21 type = types.nullOr types.ints.unsigned;
25 type = types.listOf (types.submodule {
26 options.fingerprint = lib.mkOption { type = types.str; };