* fork: (24 commits)
  Update README so it's nice to look at and useful to read.
  Update CHANGELOG and archive entries from previous project.
  Add the startup waveform.
  Add startup sound autostart script.
  Add maintainer public GPG key.
  Add script to sign releases.
  Remove dead links.
  Rename docker image.
  Rebrand boot issue.
  Replace logo and splash images.
  Show full path when retroarch configuration is missing.
  Fix git clone of gl4es and libmali.
  Create the full path of documentation sysroot.
  Add missing dependency of jelos package (autostart).
  Show missing unit when failing in `enable_service`.
  Disable online updates.
  Update README.
  Add explicit dependencies to SDL2
  docker: Remove usage of .env file to enforce hermeticity
  Do not clean git directory if no dirty files
  ...