In reply to @benjaminsparks:chat.alugha.app
package for nixpkgs or package for yourself

if you're doing cross then you should look to crane IIRC
https://crane.dev/examples/cross-rust-overlay.html

you can pass in a rust compiler from rust-overlay for example

if you're doing cross then you should look to crane IIRC
https://crane.dev/examples/cross-rust-overlay.html

you can pass in a 1.89 or later rust compiler from rust-overlay for example

       > +++ command cargo check --release --locked --all-targets
       >     Updating crates.io index
       > error: failed to get `async-trait` as a dependency of package `libkypc v0.1.0 (/nix/var/nix/builds/nix-72346-1214498785/source/crates/libkypc)`
       >
       > Caused by:
       >   download of config.json failed
       >
       > Caused by:
       >   failed to download from `https://index.crates.io/config.json`
       >
       > Caused by:
       >   [60] SSL peer certificate or SSH remote key was not OK (SSL certificate OpenSSL verify result: unable to get local issuer certificate (20))

{ pkgs, libiconv, lib, stdenv, crane }:
let
  craneLib = crane.mkLib pkgs;
  src = craneLib.cleanCargoSource ./.;
  commonArgs = {
    inherit src;
    strictDeps = true;
    buildInputs = lib.optionals stdenv.isDarwin [ libiconv ];
  };
  cargoArtifacts = craneLib.buildDepsOnly commonArgs;
in {
  kypc = craneLib.buildPackage {
    inherit cargoArtifacts;
    pname = "libkypc";
    version = "0.1.0";
    cargoExtraArgs = "-p libkypc";
    doCheck = false;
    src = lib.fileset.toSource {
      root = ./.;
      fileset = lib.fileset.unions [
        ./Cargo.toml
        ./Cargo.lock
        (craneLib.fileset.commonCargoSources ./crates/libkypc)
      ];
    };
  };
}

# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3

[[package]]
name = "quick-start"
version = "0.1.0"