FontForge
FontForge is a free and open source, multi-platform program for creating, editing and converting fonts in various formats
System programs and utilities
Fontmatrix is a free and open source simple font management application
Font Manager is a free and open source simple font management application for GTK+ desktop environments
AppImagePool is a free and open source simple, modern AppImageHub client
File Shredder is a free and open source program for securely deleting your files
Polychromatic is a free and open source RGB lighting control program for Linux, configuring Razer peripherals
RazerGenie is a free and open source application for configuring your Razer devices running Linux
CPU-X is a free and open source software for collecting information about the processor, motherboard and much more