So I wrote that because a client had a bunch of existing nacl messages that were signed using Python, but the existing Go library uses a different protocol to sign messages than the standard Python library. The existing Go library also didn't support all of the API's supported by nacl, I figured if I was running into this, then other people would too. Clearly based on the number of stars it seems like a lot of people _are_ finding it useful.

I guess in your eyes I should have also done the cryptography, however, I am not a cryptographer or a mathematician and one of the first things that you learn when you start doing work with cryptography is that you shouldn't roll your own crypto.

I decided to make that library prominent because in my consulting practice I saw a lot of clients using cryptographic primitives that were clunky and/or had a lot more overhead, for things like cookies or public key authentication or just sharing messages. nacl is difficult to use incorrectly, and is fast and efficient in terms of overhead. I wanted to promote use of nacl more than the work that I was doing for it in particular.

For that client (a smart lock company), I rewrote the backend, that someone else wrote in C for a specification that did not match the needs of the business. The C software was extremely difficult to read and maintain - socket writes in a callback in one part of the code and socket reads in a completely different part of the code, shelling out to curl, simple Mongo queries that would take 50 lines to set up. As a result the engineering team could hardly make any progress deploying new features. I ended up rewriting the whole backend in Go, a few thousand lines of understanding what the C code was doing, and porting it, to the point where the team could actually release patches and new features on a regular cadence, and figure out what on earth was going on with the Mongo queries and shell-to-curl.

That's not public though, if you're looking for public work, you could look at Logrole (github.com/kevinburke/logrole), a HTML client for your Twilio call, SMS, phone number, and recording data. Of course, you could say "that's just a regurgitation of whoever did the API client", which is true-ish, but I also wrote the API client (github.com/kevinburke/twilio-go). Of course, you could say "that's just a regurgitation of the Twilio API," but I also helped build and maintain the Twilio API, as well as the documentation and information architecture (https://www.youtube.com/watch?v=sQP_hUNCrcE), and the client libraries (https://www.youtube.com/watch?v=C_UJHqR_2Mo).

Most recently I was hired as the first engineer at Meter (meter.com) where I built out the entire backend API, the deployment infrastructure, the CI/CD infrastructure, a pipeline for the in-the-field servers to update themselves, and a method for access points to retrieve configuration from the backend. All in all this was probably about 30-50,000 lines of code over two years. I think the API has had one customer facing error in two years and no downtime.

It is true that anyone can call themselves "a software engineer" but not everyone can get contracts for a sole member consultancy and, crucially, get their contract renewed multiple times at every single client. If I was selling snake oil and not delivering anything, that would not have happened.