Sounds like this might have been your first FOSDEM. Each room is managed differently, they don’t run coordinated tracks across rooms like other conferences. Usually the best bet for your first time is to camp a room where you are interested for a big project and use the opportunity to socialize and connect in the down times. There’s usually a big room for Linux kernel stuff as well as Mozilla, and both have good properly technical talks. The MySQL and PostgreSQL rooms are usually good too with talks from Percona, MySQL, Crunchy, etc people who contrib to the projects.
Going to random talks spread out across campus is the best way to end up frustrated.
> Each room is managed differently, they don’t run coordinated tracks
That's the problem I was pointing out
Makes life a lot easier for planners (reminds me of "the best firewall is not to have a connection"), but I'm not sure it makes sense for me to attend again, at least not for the talks. There were a few rooms with more than one interesting talk, but definitely not close to a whole/half day. And the angled narrow "desk" like things aren't suitable for a laptop, plus there is no power, so I can't "skip" gaps that way (and it's silly to occupy a spot like that also).
Going to random talks spread out across campus is the best way to end up frustrated.