2.2. Full-featured applications for other types of resource scheduling and booking
Huh, these are great finds. I added them to the list above. And I thought I have already seen everything relevant on GitHub 
Since they allow multi-day bookings, a commune could manage spare room bookings with these tools as well, not needing separate tools for room and inventory.
(@hugi might be interested in these two tools for The Hub, they could be more suitable than the lab management software.)
And another free “lab management” software written in rails and used by US universities (looks pretty mighty): GitHub - tablexi/nucore-open: Northwestern University Core Facility Management Software (NUCore) . Although not mentioned in the README it is possible to setup with sqlite, will write documentation and send a PR about that.
Another great find, thank you! I added it to the wiki above.
Manage a whole FabLab, with machines, Rooms, events, … Ruby on Rails, code: GitHub - sleede/fab-manager: Fab-Manager is the FabLab management solution. It provides a comprehensive, web-based, open-source tool to simplify your administrative tasks and your marker's projects. , demo: https://demo.fab-manager.com/
Aw, I think with FabManager you found my favourite commune management software so far! Added to the list above.
In addition, I also included Modernomad in the list. It’s for managing community-run guesthouses in multiple locations, so might be interesting for your use cases. It was pointed out to me by @jonathan_sundqvist – you guys might want to connect, as you seem to be aligned in your software requirements 
Amazing listing! Thank you for sharing, have saved to my links 
I’m afraid it does not, because it’s not open source software. “Just” free for academic use, it seems. Or did I miss something?
Here’s another one with some repeats, but some new also GitHub - coderbyheart/open-source-meetup-alternatives: Open-Source Alternatives to Meetup
As of 1 nov 2020, the open source project has been discontinued, as you can read from their website:
“Booked Scheduler has become a full SaaS offering on November 1, 2020 and the open source project will be discontinued.”
Thank you for alerting us to this. I have added that announcement to the wiki above now, and also changed the links to the effgarces/BookedScheduler fork, which intends to provide bugfixes and maintenance in a limited way.
Surely the best list. It would be great if you also include deskflex as a resource scheduling software.
Since I am affiliated with them I would also like to add the Wordpress Plugin CommonsBooking (commonsbooking.org). It has been created for the free cargo bike movement and is a bit of a different booking system because it integrates into Wordpress as a popular CMS to allow initiatives to customize their websites to the fullest degree and supports having multiple locations including maps of items at locations. It has been developed for and by the community but can also be used to power a small lending library or even a tool sharing among a small local community. We have tried to make adoption as easy as possible through an extensive documentation, I would love for you to check it out.
Sorry, not a match. This list is only for open source resource scheduling software.
I’ve just found and already tried out this fantastic piece: https://github.com/sebo-b/warp - it is for workspace booking, and the interface design is excellent.
Btw, it’s incredible how difficult it is to search for this kind of software. And the number one reason is the dishonest, manipulative communication of all the “freemium” open source companies, and also the list makers (except this one!). With the real free software projects the main issue is maintenance, I think more than half of the original list hasn’t seen new commits in the last 2-7 years, and that’s prohibitive unless you are willing to take over the development.
Another booking solution, originally developed for tennis courts. (I’m not affiliated)
Github
site:
https://bs.hbsys.de/
I add Seatsurfing to the list:
The following github-awesome page contains a list of so called “Leih-Läden” (~ borrowing shops) and a list of Software which they or you can use. GitHub - mojoaxel/awesome-leihladen: Infos zu bestehenden Leihläden, Konzepten und Software
The software list has some entries, which are missing in this thread. Because requirements of the software, which matches the initial thread start, I thought it is worth mentioning them here.
Thanks for curating this awesome list here! I return here very frequently to search through its contents.