I see that your tool is mentioned constantly in online forums: https://www.google.com/search?safe=off&q=site%3Areddit.com+O... - that's 526 results. I suggest keeping an eye on those mentions and reply to any questions someone might have, or clear up any misconceptions.
You might think it's silly to interact directly like this for a product priced at $1, but keep in mind Reddit and Hacker News have very good SEO, so these questions (with your answers) will pop up when people search for your, or similar, tools online.
Moreover, for the same reason, you can monitor your competitors and recommend your tool when you have the advantage.
I don't think that at your price point ads will work for you.
I recommend that approach because that's what I've been helping people do for the past year. I'm the founder of Syften (https://syften.com). I'm happy to onboard you personally, I've sent you an email.
Hi, thank you for the feedback - yes, we do get quite a bit of positive mentions in online forums, we try to keep an eye out for them but we could be better about that.
Syften looks interesting, I don't think I've received an email from you yet though - did you send to ian [at] 33mail [dot] com? We can also be reached at support@.
Hey, welcome to the club. I'm working on Syften.com.
I'm focused on helping startups engage in conversations, so I try to send the notification within one minute. Here for example is how I used Syften to grow Syften by an additonal $640 ARR from one Reddit comment: https://syften.com/blog/post/one-comment-640-arr/ . It also has features like being notified when someone replies to you on Hacker News.
PS. I'm wondering, how in the world can you monitor GitHub? There is no API that I know of. Surely you don't scrape the entire GitHub every minute?
They don't handle this by design, and this is called a payment gateway - a simple service that just charges cards. If they were to handle this they would become a merchant of record, and there is FastSpring and Paddle that do it. Because of the different problems they solve they charge more.
It's possible that what you loved was not programming, but being a maker. As a professional programmer you're no longer a maker, the owner of the company is. You're executing his vision, not your own.
You'd probably enjoy building sand castles by the sea, but wouldn't like working as a construction worker building sky scrapers.