pull all non-essential code out of the on-chain stuff - #640

these 25 derivations will be built:
  /nix/store/cqprvapr7q7fxla417c2n7lvg8h0zp5r-psyche-workspace-deps-0.2.0.drv
  /nix/store/zlm23g0vxg63r2y22is8mbhw9725rd41-psyche-python-extension-0.2.0.drv
  /nix/store/jxdgs1ikzgidnb90blya4kqnggwv3bx9-psyche.drv
  /nix/store/mfmg61b6cp1czypay98hs033v7jzvmlh-psyche-python-env-torch_vllm_flash-attn_liger-kernel_torchtitan.drv
  /nix/store/8gib0sgb8lhv8sl4zi9483lbj33aaw75-psyche-sidecar-0.2.0.drv
  /nix/store/w24qx4v7qh52j5sixd1xhj33j0mqal44-psyche-sidecar.drv
  /nix/store/cysb7kr1v68w1i1zqhh4fq4c8zc9xm36-psyche-sidecar-nixgl-wrapped.drv
  /nix/store/c3p5dl4q5djdrrah9kfsyrlq58h8mw6g-psyche-workspace-deps-0.2.0.drv
  /nix/store/kb2zmrvcbdkdfqx2nr087mv6i7cmpzp2-psyche-centralized-server-0.2.0.drv
  /nix/store/1hnyszcwvvy9sfc3mz3d1q3qwq7qkr37-psyche-solana-client-0.2.0.drv
  /nix/store/9qk0614bh3kfj1xzh0rwr56khrpjnjsh-psyche-solana-client.drv
  /nix/store/p8wwik4jzhkd8dsmjql7ff3kil6lhhap-psyche-solana-client-nixgl-wrapped.drv
  /nix/store/qpqpsr0v1572x6xgiylrzvd0ishkc6yi-psyche-centralized-local-testnet-0.2.0.drv
  /nix/store/0v6l1qkwfmdpmznizpfv0r74jfp8vfvy-psyche-centralized-client-0.2.0.drv
  /nix/store/4glw5hpxp7p9lgiljiry6lx1bqm1zwpj-psyche-centralized-client.drv
  /nix/store/xrdcp7m9sm87qgldj5mda8dmvraz5lkq-psyche-centralized-client-nixgl-wrapped.drv
  /nix/store/dm6pjn34sxsk06cgad33vdijz7wmablh-psyche-book.drv
  /nix/store/l5wvc1zaq1nhsy11ajvfs89z7wja51fk-Caddyfile.drv
  /nix/store/fqm5iaby175g35hf3dkmi4k928sw22zs-Caddyfile-formatted.drv
  /nix/store/irad17wnbckmykfwra15jnqdq859rf99-X-Reload-Triggers-caddy.drv
  /nix/store/ddrjvw6m6wx3fnls52v2v559jkaz5xa2-unit-caddy.service.drv
  /nix/store/2vyyq53fvljmrgqbahgp43v12yi4w5i7-system-units.drv
  /nix/store/4124j2y5rxgwvip8q8fb071dv635ajmk-etc.drv
  /nix/store/09fnkzx2b83pr02svba8q8ss7mg829vk-activate.drv
  /nix/store/x5l7rk3zizc3lwd15h153pyxsac1aknc-nixos-system-nixos-26.05.20260121.88d3861.drv