Add devShell for faster feedback

Dependencies

• [2] KPWMZFHZ Add runHydra shell
• [*] RWNXH3H2 lastModified -> lastModifiedDate

Change contents

• edit in flake.nix at line 297
  [2.344]

  [2.344]
  + devShell = pkgs.hydra.overrideAttrs (old: {

  + buildInputs = old.buildInputs ++ [ pkgs.foreman pkgs.netcat ];

  + shellHook = old.shellHook + ''

  + export HYDRA_HOME="src/"

  + mkdir -p .hydra-data

  + export HYDRA_DATA="$(pwd)/.hydra-data"

  + export HYDRA_DBI='dbi:Pg:dbname=hydra;host=localhost;'

  + '';

  + });