This is a study note of uTest: a simple, intuitive testing library for Scala. It features a uniform syntax for writing and running tests using a uniform assertion syntax.

uPickle is a lightweight JSON and binary MessagePack serialization library for Scala. It is simple to use, flexible and easily customizable and has zero dependencies.

Cask is a Scala HTTP micro-framework inspired by Python’s Flask. This note covers the routes, decorators, custom endpoints and websockets.

This is a study note of Mill: a new Scala/Java build tool. The motivation is to use the functional programming concept and good ideas from Bazel to make build easy.

This is a study note of the concept of FP based on 5-parts tutorial.

This is a study note of PostgreSQL 修炼之道.

This note is about functional effects including what is functional effect and how to compose different effects. It is based on the video: One Monad to Rule Them All.