Where can I find the file where is specified which boards are supported? It's already a long time ago I did a libreelec build, but now I want to build a Allwinner H3 with lima support, just for testing. In that days all specific board where in projects -> chipset -> devices. In devices you can chose no the different cpu's but I don't find a file with the supported devices in this category.
In Lakka for example, it is specified in in the "options" file.