Nice. A calibration tracker is actually on my list of possible future projects :-) I'm surprised to see it here since it's not typical HN fare!

Thank you. My day job is as an engineer in manufacturing so I felt like I had a unique opportunity to "build what I know" and have seen people use and enjoy.

It's a worthwhile project to build yourself. If nothing else I found out that I definitely do not like the date-fns library in JavaScript. I built it using AWS Amplify, and although I like that it scales to zero, but I think there are too many gotchas to Amplify, and especially DynamoDB, for a startup app that you want to move quickly on. I wrote up one of the major ones after I got really frustrated. [1]

Like I said in my original post, I am trying to figure out how to get it in front of the right people (who are less likely to be on HN). I have kind of decided that the B2C sales experience is not great unless you get a critical mass; my experience doing sales in manufacturing is working the booth at trade shows, talking to people about engineering, and using our process tools to develop a solution to the customer's problem. The more scattered "compete for attention" advertising/promotion sales model doesn't seem great unless you have a lot of money behind it.

I'm rambling, but if anyone likes this or feels it needs a certain feature, feel free to reach out. If you're in Boston / Providence I'll happily grab a drink with you.

[1] https://gist.github.com/rchowe/1db32f1f26d74688a9b4083a19f6a...