Only what has been packaged, nix let’s you roll your own package if you like, letting you overlay ontop of existing expressions to produce your own. Want to reb

Only what has been packaged, nix let’s you roll your own package if you like, letting you overlay ontop of existing expressions to produce your own. Want to rebuild a specific OpenSSL with a specific tool chain and compile time flags? Easily expressed in nix if you don’t mind the time to build it all