I realize it's kind of old news by now, but I couldn't find a thread about it, so I thought why not make one.
All in all this is pretty great, since some games that were made on this engine now have a better chance coming to Switch.
Sony Interactive Entertainment's free-to-use game engine, PhyreEngine, appears to be compatible with Nintendo Switch.
PhyreEngine has been used to power many games in recent years, including but not limited to Final Fantasy X/X-2 HD Remaster, OlliOlli 2, Gunslugs, and Dragon Quest Builders. PhyreEngine is supported on all recent Sony PlayStation hardware, as well as Xbox One, iOS, and Android.
The revelation of PhyreEngine's support on Nintendo Switch came from the licensing document of the free Dragon Quest Builders demo, which was developed by using PhyreEngine.
All in all this is pretty great, since some games that were made on this engine now have a better chance coming to Switch.