This is IRO, or Image Reconstitution Orchestrator, a simple cross-platform image loader library.
IRO is licensed under the zlib license. See LICENSE for details.
If you need to get bytes from image files, IRO is for you. It's basically a glorified wrapper around stb_image.
IRO depends on SDL3 for portability.
Use CMake:
$ mkdir build/
$ cd build/
$ cmake ../
$ make
You may have to define SDL3_DIR.
Issues can be reported and patches contributed via Github: