Public Keytweag-nickel.cachix.org-1:GIthuiK4LRgnW64ALYEoioVUQBWs0jexyoYVeLDBwRA=

Step 1
Install Nix

Using your non-root user:

bash <(curl -L https://nixos.org/nix/install)

Step 2
Install Cachix client

nix-env -iA cachix -f https://cachix.org/api/v1/install

Step 3
Start using the binary cache

Following will configure nix.conf with your binary cache URL and its public key:

cachix use tweag-nickel

Nix commands will use the cache:

$ nix-build
copying path '/nix/store/n1gwpmvmcgsbnr0a8ncflhvc59db775h-myproject-1.0.0' from 'https://tweag-nickel.cachix.org
...