Can't log into system after crashed build. (TTY works)

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I tried to biuld my entire system with native optimizations enabled:

nixpkgs = {
  hostPlatform = {
    gcc.arch = "skylake";
    gcc.tune = "skylake";
    system = "x86_64-linux";
  };
};

I forgot to limit the jobs of nixos-rebuild and this led to my load average exceeding 100, and my system froze probably because it ran out of memory. After waiting a while I force-rebooted my PC, and ever since my PC stops before starting SDDM. The last messages are:

Nixos-crash
Nixos-crash1920×1440 165 KB

If I disable SDDM and use the default NixOS login screen, it doesn’t show theese messages however hyprland does not launch after logging in. I can launch hyprland manually by running exec systemd-cat -t uwsm_start uwsm start default

My best guess is that something is corrupted somewhere due to the force-reboot during a rebuild. However I don’t know what, where or how to fix it.
I have since removed the settings from nixpkgs, rebuilding and running old configurations don’t work either.