[PeterT]

This is based on https://shkspr.mobi/blog/2023/01/how...atpak-wayland/

I thought I'd document the steps required to succesfully run the flatpack version of calibre 7.x on a ChromeBook.

Ensure ChromeOS linux environment up to date

• sudo apt update
• sudo apt upgrade

Install flatpak

• sudo apt install flatpak

Add standard flatpak repository

• flatpak --user remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo

Shutdown and restart Linux environment
Install calibre

• flatpak install com.calibre_ebook.calibre

Launch calibre

• flatpak run com.calibre_ebook.calibre

As expected calibre dies with message

• The Wayland connection broke. Did the Wayland compositor die?

Install flatseal

• flatpak install com.github.tchx84.Flatseal

Run flatseal

• flatpak run com.github.tchx84.Flatseal

Select calibre and the Show details button

• Initial settings
  
• Disable the X11 windowing system and Wayland windowing system options

Launch calibre

• flatpak run com.calibre_ebook.calibre

No wayland errors

Additionally calibre (and flatseal) should be found in the ChromeOS Linux apps folder.

What is not currently known is whether the flatseal edits will need to be redone on each update.