Whatfiles has no dependencies besides the C standard library and Linux kernel headers, so these should be fairly portable, but please open an issue if you encounter problems. Only x64, x86, ARM32, and ARM64 are supported right now, but if there's demand for more I can look into it. The x64 binary was compiled on Mint 20, and x86 on Ubuntu 16. The ARM versions were compiled on a Raspberry Pi 4 with normal Raspbian and the 64-bit beta.