Robert Hensing questions

Robert Hensing answers

• How to read file and apply substitutions to its content?
• What's the mechanism behind `(import nixpkgs) { ... }` in Nix flakes?
• Workarounds for Haskell / cabal packages with constraints with Nix and Cabal?
• How to get "name" field out of nix expression?
• Best way to add and install runtime dependency to an existing package in Nix?
• Cabal tries to build unknown package when building with alex, happy in nix-shell
• Override a service definition in Nix?
• How can I override a package source in Nix?
• Is there a way to see the actual computed / generated "output" system configuration built and activated on NixOS?
• Is it possible (or advisable) to use NixOps to install NixOS to a USB flash drive?