diff --git a/krebs/2configs/mastodon-proxy.nix b/krebs/2configs/mastodon-proxy.nix
index 35bf6020d..b579a5031 100644
--- a/krebs/2configs/mastodon-proxy.nix
+++ b/krebs/2configs/mastodon-proxy.nix
@@ -8,17 +8,9 @@
       acmeFallbackHost = "hotdog.r";
       locations."/" = {
         # TODO use this in 22.11
-        # recommendedProxySettings = true;
-        proxyPass = "http://hotdog.r";
+        recommendedProxySettings = true;
+        proxyPass = "https://hotdog.r";
         proxyWebsockets = true;
-        extraConfig = ''
-          proxy_set_header        Host $host;
-          proxy_set_header        X-Real-IP $remote_addr;
-          proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
-          proxy_set_header        X-Forwarded-Proto $scheme;
-          proxy_set_header        X-Forwarded-Host $host;
-          proxy_set_header        X-Forwarded-Server $host;
-        '';
       };
     };
   };
diff --git a/krebs/2configs/mastodon.nix b/krebs/2configs/mastodon.nix
index ab400955e..ebc4207a0 100644
--- a/krebs/2configs/mastodon.nix
+++ b/krebs/2configs/mastodon.nix
@@ -19,18 +19,11 @@
     smtp.fromAddress = "derp";
   };
 
-  services.nginx.virtualHosts.${config.services.mastodon.localDomain} = {
-    forceSSL = lib.mkForce false;
-    enableACME = lib.mkForce false;
-    locations."@proxy".extraConfig = ''
-      proxy_redirect off;
-      proxy_pass_header Server;
-      proxy_set_header X-Forwarded-Proto $http_x_forwarded_proto;
-    '';
-  };
+  security.acme.certs."social.krebsco.de".server = "https://acme-staging-v02.api.letsencrypt.org/directory";
 
   networking.firewall.allowedTCPPorts = [
     80
+    443
   ];
 
   environment.systemPackages = [
diff --git a/krebs/2configs/reaktor2.nix b/krebs/2configs/reaktor2.nix
index db7b794f4..e84827656 100644
--- a/krebs/2configs/reaktor2.nix
+++ b/krebs/2configs/reaktor2.nix
@@ -526,6 +526,8 @@ in {
       add_header 'Access-Control-Allow-Origin' '*';
       add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
     '';
+    # needed for acmeFallback in sync-containers, or other machines not reachable globally
+    locations."~ ^/.well-known/acme-challenge/".root = "/var/lib/acme/acme-challenge";
   };
 
   services.nginx.virtualHosts."bedge.r" = {