server-config/services/llama-cpp.nix

53 lines
1.3 KiB
Nix

{
pkgs,
service_configs,
config,
inputs,
...
}:
let
# stolen from: https://stackoverflow.com/a/42398526
optimizeWithFlags =
pkg: flags:
pkgs.lib.overrideDerivation pkg (
old:
let
newflags = pkgs.lib.foldl' (acc: x: "${acc} ${x}") "" flags;
oldflags = if (pkgs.lib.hasAttr "NIX_CFLAGS_COMPILE" old) then "${old.NIX_CFLAGS_COMPILE}" else "";
in
{
NIX_CFLAGS_COMPILE = "${oldflags} ${newflags}";
stdenv = pkgs.clang19Stdenv;
}
);
in
{
services.llama-cpp = {
enable = true;
model = builtins.toString (
pkgs.fetchurl {
url = "https://huggingface.co/bartowski/google_gemma-3-12b-it-GGUF/resolve/main/google_gemma-3-12b-it-IQ4_XS.gguf";
sha256 = "aa7b7ae0b17931c379ede82da59b01f246046925aeb752af1ab4285a3b0d69db";
}
);
port = service_configs.ports.llama_cpp;
host = "0.0.0.0";
package = (
optimizeWithFlags inputs.llamacpp.packages.${pkgs.system}.default [
"-O3"
"-march=znver2"
"-mtune=znver2"
]
);
extraFlags = [
];
};
services.caddy.virtualHosts."llm.${service_configs.https.domain}".extraConfig = ''
${builtins.readFile ../secrets/caddy_auth}
reverse_proxy :${builtins.toString config.services.llama-cpp.port}
'';
}