Architecture error when importing a dependency multiple times

[khazaddum]

I have a flake that has the following dependencies:

Inputs:
├───flake-parts: github:hercules-ci/flake-parts/49f0870db23e8c1ca0b5259734a02cd9e1e371a1
│   └───nixpkgs-lib: github:nix-community/nixpkgs.lib/656a64127e9d791a334452c6b6606d17539476e2
├───haskell-flake: github:srid/haskell-flake/af2ba40f23824556b12d1cdfdf392e263876d644
├───nixpkgs: github:nixos/nixpkgs/8f1b52b04f2cb6e5ead50bd28d76528a2f0380ef
├───persistent-sqlite: git+https://code.vergara.tech/Vergara_Tech/persistent-sqlite?ref=master&rev=4ecc955c183dfacfb4c41b9de04c336dab0ca768
│   ├───flake-parts follows input 'flake-parts'
│   ├───haskell-flake follows input 'haskell-flake'
│   └───nixpkgs follows input 'nixpkgs'
├───qrc: git+https://code.vergara.tech/Vergara_Tech/qrc?ref=master&rev=9554d32f8ab4e26d568d1eda46ace907b896a1b4
│   ├───crane: github:ipetkov/crane/323b5746d89e04b22554b061522dfce9e4c49b18
│   ├───flake-parts follows input 'flake-parts'
│   ├───foreign-rust: git+https://code.vergara.tech/Vergara_Tech/haskell-foreign-rust?ref=main&rev=6366ca7b0f9a3c0b71bee88ae396393e692852ad
│   │   ├───borsh: git+https://code.vergara.tech/Vergara_Tech/borsh.git?ref=main&rev=8d45db7fdce9a8b5b5f73ec550f1e8c17650c341
│   │   │   ├───flake-parts follows input 'qrc/foreign-rust/flake-parts'
│   │   │   ├───haskell-flake follows input 'qrc/foreign-rust/haskell-flake'
│   │   │   └───nixpkgs follows input 'qrc/foreign-rust/nixpkgs'
│   │   ├───crane: github:ipetkov/crane/323b5746d89e04b22554b061522dfce9e4c49b18
│   │   ├───flake-parts follows input 'qrc/flake-parts'
│   │   ├───haskell-flake follows input 'qrc/haskell-flake'
│   │   ├───nixpkgs follows input 'qrc/nixpkgs'
│   │   └───rust-overlay follows input 'qrc/rust-overlay'
│   ├───haskell-flake follows input 'haskell-flake'
│   ├───nixpkgs follows input 'nixpkgs'
│   └───rust-overlay: github:oxalica/rust-overlay/12419593ce78f2e8e1e89a373c6515885e218acb
│       └───nixpkgs follows input 'qrc/nixpkgs'
└───zcash-haskell: git+https://code.vergara.tech/Vergara_Tech/zcash-haskell?ref=ravnix&rev=3d1eb7e44ea473a69e62402f93cdfd3ad5a12506
    ├───crane: github:ipetkov/crane/323b5746d89e04b22554b061522dfce9e4c49b18
    ├───flake-parts follows input 'flake-parts'
    ├───haskell-flake follows input 'haskell-flake'
    ├───hexstring: git+https://code.vergara.tech/Vergara_Tech/haskell-hexstring?ref=master&rev=dd8c129b3e75c3d27ea596699b5a43ad0547f0e2
    │   ├───flake-parts follows input 'zcash-haskell/flake-parts'
    │   ├───foreign-rust: git+https://code.vergara.tech/Vergara_Tech/haskell-foreign-rust?ref=main&rev=6366ca7b0f9a3c0b71bee88ae396393e692852ad
    │   │   ├───borsh: git+https://code.vergara.tech/Vergara_Tech/borsh.git?ref=main&rev=8d45db7fdce9a8b5b5f73ec550f1e8c17650c341
    │   │   │   ├───flake-parts follows input 'zcash-haskell/hexstring/foreign-rust/flake-parts'
    │   │   │   ├───haskell-flake follows input 'zcash-haskell/hexstring/foreign-rust/haskell-flake'
    │   │   │   └───nixpkgs follows input 'zcash-haskell/hexstring/foreign-rust/nixpkgs'
    │   │   ├───crane: github:ipetkov/crane/323b5746d89e04b22554b061522dfce9e4c49b18
    │   │   ├───flake-parts follows input 'zcash-haskell/hexstring/flake-parts'
    │   │   ├───haskell-flake follows input 'zcash-haskell/hexstring/haskell-flake'
    │   │   ├───nixpkgs follows input 'zcash-haskell/hexstring/nixpkgs'
    │   │   └───rust-overlay: github:oxalica/rust-overlay/c52e346aedfa745564599558a096e88f9a5557f9
    │   │       └───nixpkgs follows input 'zcash-haskell/hexstring/foreign-rust/nixpkgs'
    │   ├───haskell-flake follows input 'zcash-haskell/haskell-flake'
    │   └───nixpkgs follows input 'zcash-haskell/nixpkgs'
    ├───nixpkgs follows input 'nixpkgs'
    └───rust-overlay: github:oxalica/rust-overlay/12419593ce78f2e8e1e89a373c6515885e218acb
        └───nixpkgs follows input 'zcash-haskell/nixpkgs'

When running nix flake check I get this error:

error: a 'aarch64-darwin' with features {} is required to build '/nix/store/wprydkf14qwvnnyz8vvhbn7rbhchr8rz-cabal2nix-borsh.drv', but I am a 'x86_64-linux' with features {benchmark, big-parallel, kvm, nixos-test, uid-range}

I am importing these libraries into the main flake like this:

    flake-parts.lib.mkFlake {inherit inputs;} {
      systems = nixpkgs.lib.systems.flakeExposed;
      imports = [
        inputs.haskell-flake.flakeModule
      ];

      perSystem = {
        self',
        config,
        pkgs,
        inputs',
        system,
        ...
      }: {
        haskellProjects.default = {
          imports = [
            inputs.zcash-haskell.haskellFlakeProjectModules.output
            inputs.persistent-sqlite.haskellFlakeProjectModules.output
            inputs.qrc.haskellFlakeProjectModules.output
          ];
        ...
       };

The new addition is the qrc library and I don't understand why this is causing nix to try to build the wrong architecture for borsh. All these flakes pass their checks and build correctly on their own.

[khazaddum]

After doing some experiments, I have found that ensuring that all the dependencies are aligned using follows removes the error regarding borsh, but now produces the following error:

error: The option `custom.<function body>' is defined multiple times while it's expected to be unique.

       Definition values:
       - In `/nix/store/wakd6jl297s29fhdm8957rhcnjak68nh-source/flake.nix, via option perSystem, via option perSystem.x86_64-linux.haskellProjects.default.settings.rustbits': <derivation rustbits-cbuild-0.1.0>
       - In `/nix/store/wakd6jl297s29fhdm8957rhcnjak68nh-source/flake.nix, via option perSystem, via option perSystem.x86_64-linux.haskellProjects.default.settings.rustbits': <derivation rustbits-cbuild-0.1.0>
       Use `lib.mkForce value` or `lib.mkDefault value` to change the priority on any of these definitions.

The derivation rustbits-cbuild is part of the foreign-rust flake, which is in two places in the dependency tree. Any ideas on how to resolve this would be very helpful.