diff --git a/configuration.nix b/configuration.nix
index 873e6c4..8d419c5 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -16,7 +16,7 @@
     };
   };
 
-  boot.cleanTmpDir = true;
+  boot.tmp.cleanOnBoot = true;
 
   # Network configuration
   networking = {
@@ -46,7 +46,7 @@
   # OpenSSH daemon
   services.openssh = {
     enable = true;
-    passwordAuthentication = false;
+    settings.PasswordAuthentication = false;
     listenAddresses = [
       { addr = "0.0.0.0"; }
       { addr = "::"; }
@@ -56,7 +56,7 @@
   # Let's Encrypt certificates
   security.acme = {
     acceptTerms = true;
-    email = "manu@beffara.org";
+    defaults.email = "manu@beffara.org";
   };
 
   # Nginx web server
@@ -87,8 +87,9 @@
     enable = true;
     hostName = "cloud.beffara.org";
     https = true;
-    package = pkgs.nextcloud21;
+    package = pkgs.nextcloud27;
     home = "/data/web/nextcloud";
+    enableBrokenCiphersForSSE = false;
 
     autoUpdateApps = {
       enable = true;
@@ -141,12 +142,13 @@
       passwordFile = "/data/gitea/db-pass";
       type = "postgres";
     };
-    domain = "git.beffara.org";
-    enableUnixSocket = true;
     mailerPasswordFile = "/data/gitea/mailer-pass";
     repositoryRoot = "/data/gitea/repositories";
-    rootUrl = "https://git.beffara.org/";
     stateDir = "/data/gitea";
+    settings.server = {
+      DOMAIN = "git.beffara.org";
+      PROTOCOL = "http+unix";
+    };
   };
 
   # Initial user account