vhostLocal = { localPort, addlLocationConfig ? {} }: {
          forceSSL = true;
          enableACME = true;
          listen =  [ {addr = "localhost"; port = customPorts.nginxHttp; ssl = false; }
          { addr = "localhost"; port = customPorts.nginxHttps; ssl = true; }
        ];
        locations = {
          "/" = {
            proxyPass = "http://localhost:${(toString localPort)}";
            extraConfig = ''
              proxy_set_header Host $host;
            '';
          };
        } // addlLocationConfig;
      };

In reply to @rendakuenthusiast:imperishable.name
so deleting that line causes the segfault

oh huh what

what Nixpkgs revision and Nix version are you using?

In reply to @rendakuenthusiast:imperishable.name
in the hive file I have nixpkgs = <nixpkgs>. so that says, use the nixpkgs version on my local system, right?

In reply to @rendakuenthusiast:imperishable.name
also setting it to false

In reply to @winterqt:nixos.dev
wait so enableACME = true -> no segfault, but false -> segfault??

 - system: `"x86_64-linux"`
 - host os: `Linux 5.18.11-arch1-1, Arch Linux, noversion, rolling`
 - multi-user?: `yes`
 - sandbox: `no`
 - version: `nix-env (Nix) 2.10.1`
 - channels(root): `""`
 - channels(myusername): `"nixpkgs"`
 - nixpkgs: `/nix/var/nix/profiles/per-user/myusername/channels/nixpkgs`

:( no version info

okay, can you try just directly using the output of the function? like, do "..." = { enableACME = false; locations = ...; } to see if it's the function invocation that's causing it for whatever reason?

that command gets me:

trace: `lib.nixpkgsVersion` is deprecated, use `lib.version` instead!
"22.11pre388097.9a17f325397"