How to get wifi on OUIGO trains?

Okay, so, you're trying to figure out the wifi situation on OUIGO trains, right? It's a bit tricky, isn't it? They have this thing called OUIFI, which sounds kinda cute, but here's the kicker: it's only on those fast trains, you know, the ones zooming between Paris and Lyon. Like, what about the rest of us?! I took a OUIGO from, uh… where was it? Oh yeah, from Nantes to Bordeaux, and no wifi. Seriously. It was a long ride, let me tell you! So, if you're not on the Paris-Lyon route, don't even bother thinking about catching up on your Insta feed or whatever. And even if you are lucky enough to be on one of the fancy high-speed trains, it's not free. Nope, they slap you with another three euros. Three euros! I mean, it's not a fortune, but still… It adds up, right? Especially if you’re traveling with family or something. So yeah, just a heads-up. OUIFI exists, but it's kind of… limited. Plan accordingly!