Introduction
Linux
Fix fan operation on ODROID HC4
YubiKey as SSH CA
Migrate pipx packages to new Python version
Upgrade pgsql after Ubuntu release upgrade
Colored return code in a Bash PS1
Recommended additional Caddy snippets
Windows
Remove empty directories recursively
Other IT stuff
Kepubify a novel from syosetu.com
USSD codes for voicemail management
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Linux
A collection of tasks for Linux administration and such.