The server on which our Movim, XMPP server and the Wiki runs will be down for 1 hour this weekend as I am swapping out the CPU and cooler for a stronger one.
SLRPNK Lemmy, the alternative frontends and the Etherpad will not be effected.
There will also be a few other short disruptions in the coming days as I am switching around a few other things with the hardware, but those should be only a few seconds to minutes at most.
Edit: Double-checking the specs I just now realized that I have to do it in a different way.
Edit2: Will still do a short maintenance to replace the CPU cooler, but not the CPU as the new one needs a different type of memory.