Ready to launch, but first polling the IH audience

Hey there, first-time poster, long time lurker and admirer of all the cool people and discussions here.

I just finished building a new app - a job board - and am essentially ready to launch v1.

It's focused on listing design, development and marketing jobs for companies/agencies that run their businesses on Shopify, meaning they build apps or themes etc for merchants on Shopify.

I also run https://www.ecommtalk.com - a 2,500+ person, Shopify-focused slack community (mostly filled with developers and business owners).

My question to you:
Should I launch it under that entity or continue down my current path of making it something new? The aforementioned site already gets traffic (small) and gets people to join the slack group on a daily basis. It also has an email list that size too.

I want to launch it under a new entity because if the model works, and I have other niches I want to try out, it would be very easy to roll up another.

I'm fighting the urge not to overbuild things and just get it shipped, but this is the last real question I can't seem to answer myself.

Thanks in advance!