This is a guide how to use ElasticSearch with Python and Jupyter.

To make the Jupyter works on my environment, I want to create a “miniconda” virtual environment, which caused error with “pyenv”. Here is the instructions how to make it work.

Today when I was claiming a dental expense, I was asked that whether the dental service is “basic” or “major”. I totally had no idea, so I googled it and get the following result from here.

On Mac I want to check the content of a RPM file, how to do it?

From here, here and here.

Alda is a music programming language for musicians.

From here.

A Merkle DAG is a Merkle directed acyclic graph. That is a data structure similar to a Merkle tree but not so strict: such DAG does not need to be balanced and its non-leaf nodes are allowed to contain data.

VirtualBox 6.0 was released on Dec 18th, 2018. This is a major version upgrade. The biggest improvement for me is the HiDPI support. It makes the Ubuntu VM in my MacBook host be able to leverage the high resolution display.

From here.

From here.