Getting started
A PC without a graphics card
Without a graphics card GlirOS can use, the model runs on the processor.
That works, only slower, so the welcome recommends a small model and says why. After the first answer on the processor GlirOS tells you how long it took to start and how many words a second it wrote, and when that's slow, that a smaller model answers faster (Settings > Models). While a model downloads you can chat with a cloud model instead; your messages then go to that company.
This guide is the same text GlirOS itself uses to answer questions about GlirOS.