diff --git a/modules/hydra/default.nix b/modules/hydra/default.nix
index e9fe3d7..58b3ebb 100644
--- a/modules/hydra/default.nix
+++ b/modules/hydra/default.nix
@@ -101,7 +101,7 @@ in {
   config = {
     # TODO manage `hydra` user ssh key declaratively
     nix.extraOptions = ''
-      allowed-uris = https://github.com/ git://git.savannah.gnu.org/
+      allowed-uris = https://github.com/ git://git.savannah.gnu.org/ https://git.sr.ht
     '';
 
     services.hydra = {
diff --git a/modules/mara/default.nix b/modules/mara/default.nix
index 79dcc0e..1888ef2 100644
--- a/modules/mara/default.nix
+++ b/modules/mara/default.nix
@@ -50,7 +50,7 @@
       description = "Mara Savastano";
       isNormalUser = true;
       inherit (config.mara) extraGroups;
-      shell = pkgs.zsh;
+      shell = pkgs.nushell;
       openssh.authorizedKeys.keys = config.mara.authorizedKeys;
     };