Sharing nix-portable store between multiple users

[wamserma]

@jacg

NixOS with shared nix store among compute nodes

We managed to install NixOS on the compute nodes of a small HPC cluster and now we face the problem of how to run parallel jobs via SLURM in multiple nodes reading the same dependencies from the nix store. As far as I know there are only two options: The nix store is local per node and the clousures are distributed to the nodes before the execution begins. This seems to be the choice that @markuskowa was following. Share the nix store among nodes, so they can directly access the paths. …

Super Colliding Nix Stores

Replit has teamed up with Obsidian Systems (@Ericson2314) and Tweag (@thufschmitt, @ben) to add a Local Overlay Store to Nix that allows merging of multiple (possibly remote) stores. You can read more about the motivation and details for this project on our blog: In the coming weeks, we will be developing these new features, releasing a Nix RFC, and working to upstream it into Nix. Reply here if you have ideas for how this kind of Store could help you out. We’re interested to learn about m…

[RFC 0152] `local-overlay` store