There are 9 repositories under custom-iso topic.
Arch Linux Based Custom ISOs Made With "Archiso"
A custom Arch Linux ISO Maker
🧰 It is a tool that allows you to customize your Windows ISO files and create your own custom Windows image by applying various customizations.
Update!! Old Rason (*reason why i despise the FoxOS windows iso.*)
Debian and it's derivatives Simple-CDD preseed configuration with profiles
WinCustomizer a 360° tool for Windows10 and Window11
the organization's readme file