SliTaz might be a bit more popular than FatDog64. We know about 1 link to it since March 2021 and only 1 link to FatDog64. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
You might be able to run something like fatdog64 on it. https://distro.ibiblio.org/fatdog/web/. Source: over 1 year ago
Slitaz should run in 512M: https://slitaz.org/. Source: about 1 year ago
TinyCore - Simple operating system based on Linux that uses "modules", and loads everything into RAM. Can be persistent too.
Lubuntu - Lubuntu is a fast and lightweight operating system with a clean and easy-to-use user interface. The core of the system is based on Linux and Ubuntu. Lubuntu uses the minimal desktop LXDE, and a selection of light applications.
DietPi - Dietpi is a debian based operative system made to install new apps easyer.
Slax - Slax is a modern, portable, small and fast Linux operating system. Slax LinuxSlax is a modern, portable, small and fast Linux operating system.
CRUX Linux - CRUX is a lightweight Linux distribution for the x86-64 architecture targeted at experienced Linux...
Ubuntu - Ubuntu is a Debian Linux-based open source operating system for desktop computers.