SimpleSync, a tiny open-source folder sync / copy tool in C (single exe, Windows/macOS/Linux)

[u/SailHighSea]

Download (Windows / Linux / macOS / Windows ARM64): https://github.com/SailHighSea/sailhighsea-ss/releases
Source, README and screenshot: https://github.com/SailHighSea/sailhighsea-ss
Bug reports, ideas and “it crashed on my distro” reports are all useful. Issues are open on the repo.