Have you heard of Commercial open source (COSS)? It's a growing industry of promising OSS tools combining the benefits of proprietary SaaS with open source software.
As for the Calendly alternative instance - have you heard of cal.com? It's free for individuals.
As for the Calendly alternative instance - have you heard of cal.com? It's free for individuals.
I recently wrote this article featuring their origin story: <https://blog.scoutflo.com/cal-com-the-coolest-open-source-al...>