Updated, see below
February 2019 I launched fullstackjob.com as a single-tenant Job Board for Full-Stack Developers. From the beginning, the plan was to build it as the basis for an "Engine", which can handle multiple boards for a different kind of Niche or Company Job Boards. To not potentially lose to much time before launching first board I did not implement multi-tenant layer, but the coding was done to add this layer as fast as possible after.
Next Step is now to build a new landing page for boardengine and start commercialization.
Soon I plan to make a more technical post about how I implemented multi-tenancy (Stack: Go, Vue.js, ArangoDb, Redis, Nsq, Rancher/Docker)
Full-Stack Dev & Maker