Requirements:

• python3 qt5 webengine, core, webengine-qsci-api, webenginewidgets
  
• Python3
• Python3-sip,
• sqlitebrowser
• qt5ct and qtstyleplugins (optional to customize interface with themes qt and gtk2 in environments without kde)
• tkinter (htmlsource)
  

Some shortcuts:

• Copy: CTRL+C
• Cut: CTRL+X
• Paste: CTRL+V
• Zoom: CTRL+mouse wheel
• Select all: CTRL + A
  

• Change your settings in: browser.sh, browser_parroth.sh, downzemall-retroplanet.sh, firedm.sh, jd-retroplanet.sh, start.sh, start_parrot.sh
• Change your settings in retroplanet-navigator.py and retroplanet-navigator-parrot.py in: ### USER SETTINGS ###.
  

        Use appropriate Python-compatible text editors.
        Notepadqq or Textosaurus recommended:

       https://github.com/notepadqq/notepadqq

       https://github.com/martinrotter/textosaurus