I started accepting crypto donations for my open source project and want to build a tool from what I learned in the process (looking for feedback)

Hello,

I'm the maintainer of a few OSS projects. My most popular tool (called Termix, website, and mobile app) has over 14k GitHub stars and 10M+ Docker pulls. A few months ago, I started accepting crypto donations for that project (BTC, ETH, and SOL), and since then, I've started digging into the field of crypto as a whole. I've been looking into wallet monitoring, webhooks, all for the purpose of notifying me when I've been donated to.

My idea: A free app (website/mobile app) that sends you a push notification any time you get sent crypto to a wallet address you are watching. This would be aimed at people like me, OSS maintainers, streamers, anyone taking donations, who just want to know the second that they've received a donation.

Of course, services like this already exist such as cryptocurrencyalerting.com. However, there has yet to be (from what I've seen, correct me if I'm wrong) a single service that is account-less and free. The plan is to keep it free and fund it through donations; more donations unlock more chains where I can self-host my own nodes to feed the notifications.

Initially, the app will just be fed from QuickNode since I believe that will cover the initial user base, but as I gain more users and donations, I will begin self-hosting nodes for different networks, which would allow me to keep the app free.

Before I sink time into building it, I wanted to check if this is something that would be actually useful to people or if it already exists and I've missed it. What are your thoughts?

Thanks for reading,
Luke