Ask HN: How can we open-source a 7 year old SaaS codebase and build a community?

Hello HN! We’re currently open-sourcing our core code (backend and frontend) and pivoting to adding value with LLMs on top. With this, we need some advice. I'm Kirill Markin, and my co-founder is Nikolay Amiantov. We've been working on our CRM/ERP product since 2017 and even have paying customers. But our growth is slow, and that's not exciting. We want to create something bigger for more people to use, and open-sourcing is something that both resonates with us and is a way to attract a community. Our codebase is 38k LoC of F# (including a compiler for our own query language) and 35k LoC of TypeScript + Vue.js. While we prepare the code we have been reaching out to Zoho and ODOO integrators/developers (as they’re our closest competitors), from whom we got a lot of positive feedback. Our biggest hurdle is figuring out the best way to take the next steps. Does anyone have any ideas on how to launch such a large codebase on GitHub to get maximum visibility? Sugges