Solving the cache.nixos.org problem

Thank you @poelzi for your suggestion - I think it’s worth to think about decentralized storage (and the nix community already did) - but please stay humble and realistic.

Suggesting a technology that hasn’t even reached mainnet for a large-scale project that needs stable infrastructure - I think we can talk about that in 1 year - earliest… When some other, more experimental projects have adopted the technology, and the network has proven itself in terms of stability and longevity.