> Hold on, what if you’ve made changes since the last snapshot? And this is the clever bit: you ensure that every time you change parts of RAM, we write a transaction to disk.
Every single time… it’s always just the wheel being re-written.
The wheel has been reinvented in different shapes and for different purposes for a long time. It's not necessarily a bad thing. You don't want to keep using stone wheels, or wooden wheels. Have you ever seen modern sci-fi wheels developed for very specific purposes and with specific properties that make them better than just plain-old wheel?
We used an existing library called bknr.datastore to handle this part, so we didn't have to reinvent the wheel :) I mentioned that at the end of the blog post, but I wanted to build up the idea for people who have no prior knowledge about how such things work.
Every single time… it’s always just the wheel being re-written.