galleri: Support .thumbnails

Co-authored-by: h7x4 <h7x4@nani.wtf>

nix/module.nix

@@ -145,17 +145,15 @@ in
     #       the toplevel configuration file.
     # NOTE: Nvm, don't this this was the problem after all?
     finalPackage = cfg.package.overrideAttrs (_: _: {
-      postInstall = let
-        f = x: lib.escapeShellArg (format.lib.valueToString x);
-      in cfg.package.postInstall + ''
+      postInstall = cfg.package.postInstall + ''
         substituteInPlace $out/${cfg.package.passthru.simplesamlphpPath}/config/config.php \
-          --replace '$SAML_COOKIE_SECURE'   ${f cfg.settings.SAML.COOKIE_SECURE} \
-          --replace '$SAML_COOKIE_SALT'     ${f cfg.settings.SAML.COOKIE_SALT} \
-          --replace '$SAML_ADMIN_PASSWORD'  ${f cfg.settings.SAML.ADMIN_PASSWORD} \
-          --replace '$SAML_ADMIN_NAME'      ${f cfg.settings.SAML.ADMIN_NAME} \
-          --replace '$SAML_ADMIN_EMAIL'     ${f cfg.settings.SAML.ADMIN_EMAIL} \
-          --replace '$SAML_TRUSTED_DOMAINS' ${f cfg.settings.SAML.TRUSTED_DOMAINS} \
-          --replace '$CACHE_DIRECTORY'      ${f cfg.settings.CACHE_DIRECTORY}
+          --replace '$SAML_COOKIE_SECURE' '${format.lib.valueToString cfg.settings.SAML.COOKIE_SECURE}' \
+          --replace '$SAML_COOKIE_SALT' '${format.lib.valueToString cfg.settings.SAML.COOKIE_SALT}' \
+          --replace '$SAML_ADMIN_PASSWORD' '${format.lib.valueToString cfg.settings.SAML.ADMIN_PASSWORD}' \
+          --replace '$SAML_ADMIN_NAME' '${format.lib.valueToString cfg.settings.SAML.ADMIN_NAME}' \
+          --replace '$SAML_ADMIN_EMAIL' '${format.lib.valueToString cfg.settings.SAML.ADMIN_EMAIL}' \
+          --replace '$SAML_TRUSTED_DOMAINS' '${format.lib.valueToString cfg.settings.SAML.TRUSTED_DOMAINS}' \
+          --replace '$CACHE_DIRECTORY' '${format.lib.valueToString cfg.settings.CACHE_DIRECTORY}'
       '';
     });
   in {