The Toolsmiths gamedev tools
This website is the public face of an online community for game tools development. It was mainly born out of the Game Developers Conference Technical Issues in Tools roundtable sessions.
If you work on game development tools (or are a student/enthusiast) you can get an invite by direct messaging your email address to @thetoolsmiths. If DMs aren’t open poke the account first and it will follow you.
You can use the fast signup process by using this signup page and providing your email.
Part of the online community is also from the IGDA Tools SIG. That organization is dormant at the moment, but in the past they organized a lot of blog content. That content is archived here.