If you’re looking for super robust military/“tacticool” ones, check out Tasmanian Tiger (Germany) and their more civil parent company Tatonka. Helikon-Tex (Poland) also has some tactical backpacks, but not such a huge variety. Should mention though that while all three companies and their designs are made in Europe, the actual manufacturing is done in Vietnam AFAIK.

Yes there are plenty of good open source apps and tools. However if you want to read your feeds on multiple devices and have them synced between them that means you gotta host your own service like FreshRSS for example, which is probably not an option for the average user.