| 28 Jan 2026 |
 Daniel Firth | Hey guys. We're looking at trying to include the cardano-node in nixpkgs. I'm thinking of ways to do this and obviously since it involves CHaP and also significantly deviates from stackage just on the hackage dependencies I'm wondering if you have any thoughts on what you would accept as a way to this. | 11:35:25 |
| Daniel Firth | * Hey guys. We're looking at trying to include the cardano-node in nixpkgs. I'm thinking of ways to do this and obviously since it involves CHaP and also significantly deviates from stackage just on the hackage dependencies I'm wondering if you have any thoughts on what you would accept as a way to do this. | 11:35:37 |
 maralorn | What’s CHaP? | 11:39:30 |
| maralorn | I am pretty sure there are examples on how to package non-hackage packages in nixpkgs. | 11:40:13 |
| maralorn | Including some with a non-neglectable number of overrides. | 11:40:47 |
| maralorn | Actually I think even cachix does it. | 11:41:01 |
|  Robin Stumm joined the room. | 11:48:38 |
| Robin Stumm | https://github.com/IntersectMBO/cardano-haskell-packages | 11:49:23 |
| Daniel Firth | We could be looking at more than 50% of the build plan would be custom, so 300 or more packages. | 11:52:13 |
| maralorn | Oooh. | 11:54:09 |
| maralorn | I mean I wonder how large that would be in comparison to other large derivation packages in nixpkgs. Like those with a checked in npm or cargo lock. | 11:55:36 |
| Daniel Firth | It would be more or less exactly the same size as the equivalent horizon expression here. https://gitlab.horizon-haskell.net/package-sets/horizon-cardano
nix build 'git+https://gitlab.horizon-haskell.net/package-sets/horizon-cardano#horizon-cardano'
| 11:57:33 |
