About

Hi, welcome to my blog! I am Kai Wern, a Software Engineer at Ditto.

Here I write about software and life. Some of the tools I use daily are vim, Rust, Elixir/Phoenix, and PostgreSQL. You can expect posts about these from my blog.

Around March 2022, I attended the Spring batch of the Recurse Center (RC) During my time in here, I have work on:

• Writing simple database in Rust, inspired by Let’s Build a Simple Database.
• Writing rok, a minimal reverse proxy inspired by ngrok.
• Implementing Viewstamped Replication (VSR) in Elixir based on this paper.
• Learning about database and exploring other lower level system like networking, observability and etc.

Now

I spend most of my time working in Ditto. After work, I’m mostly mentally exhausted and would just have a good rest so I can do some chores before sleep.

I’m still struggling to get back to writing, partly because my priority in life has changed in 2023. Until I have progress enough in the other parts of life, writing and posting consistently here will not be my focus.

Apart from that, I realized I have so much to learn and I would like to devote more time learning in the next few months. Maybe I might write a little along the way, maybe not. If you happen to read this and look forward to my writings, thanks you and stay tuned.

I’ll be back.

Abandoned Projects

These are the side projects that I worked in the past to learn, which now have been abandoned by me:

• TIL: Today I learned a web application developed with Phoenix. It includes basic features like adding posts with Markdown and tagging. The idea of the application is inspired by Hashrocket TIL.
• hbtrack: My first CLI to track habits! It’s written in Ruby and still functions well. I stopped using it, and uses Streaks instead.