til VS dev-journal

Some people create single note for each code example, like for example this TIL a repo https://github.com/jbranchaud/til`

That's more like it. This backs up the decision to add a B-Tree index for the created_at column in production. As I mentioned at the beginning of the post, adding an index like this in any production setting, but especially for a table of this size, it is important to do so concurrently and to monitor your app's health metrics during the process.

State machines are hierarchical. They can be made up of simple and composite states. Composite states have sub-states nested within them.

In all the time that I've been building and maintaining Rails apps, I've somehow never noticed that ActiveRecord attributes backed by columns with default values are nil on create.

Dump them in a github repo (like this)

I have created a [dev-journal](https://github.com/mohit2152sharma/dev-journal) for myself and use the obsidian's daily notes feature to create a daily file for me. The thing was, I was spending too much time on googling and just going through random tech videos that I wanted to memorize (at least the terminologies). The daily notes feature forces me to create at least one note for the day and make sure there is something I am learning each day. I link same concepts across files using tags (`#`).