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On Video Formats

If you need to convert mkv to mp4 and don't want to lose quality as you would while re-encoding. Run this command in any linux machine

• ffmpeg -i input.mkv -c copy -map 0 output.mp4

*where input.mkv is your current file and output.mp4 is whatever name and location you want your file to be.

Bazaar on Ubuntu 26.04 Beta. Issue downloading apps

While testing Ubuntu 26.04 Beta I ran into this issue where the flathub Bazaar store does not allow to download any app. The store looks normal and you can click on download but it does not do anything. While Bazaar being a GUI frontend for flatpak does not work propelry as of 25.04, installing flatpak apps via terminal works perfect and you can use that instead of the GUI frontend. Anyway I found this on a github link that allowed me to fix the issue by implementing these 2  commands. Keep in mind Ubuntu 26.04 is still in beta as of March 2026. Please apply at your own discretion.

sudo ln -sf /etc/apparmor.d/fusermount3 /etc/apparmor.d/force-complain/fusermount3

sudo apparmor_parser -r /etc/apparmor.d/fusermount3  

And to revert the changes use these commands.

sudo rm /etc/apparmor.d/force-complain/fusermount3

sudo apparmor_parser -r /etc/apparmor.d/fusermount3 

Source: https://github.com/bazaar-org/bazaar/issues/583