We built a headless CMS for Firebase called Flamelink, what are the best ways to get the word out?

Flamelink.io: A Content-Centric Firebase CMS - Home

We released a beta version of our product Flamelink, a headless Firebase CMS to make managing content in Firebase easier than it currently is.

I'd love to know what are some of the best methods to get the word out/get Flamelink in front of Developers already using Firebase for their projects?

Currently we have:

• an adwords campaign running
• YouTube explainer video
• A few articles on Hackernoon
• Exploring advertising on Reddit etc (we found Facebook etc to not be hugely beneficial) - Pls dont sell my data Zuckerberg...
• emails

Would love any advice and input on how to best market to Developers - folks who are generally speaking "immune" or averse to traditional marketing efforts.

Thanks in advance for your time. Hoping to learn from the community.

Cheers