A low-tech command line tool for adding and querying a PKB - Personal Knowledge Base (uses key value pairs)
Install python dependencies for this project and install mongo (https://docs.mongodb.com/manual/installation/)
Run a local mongo server: $:mongod --dbpath="./db/"
Now you can add to your PKB with:
$:pkb --insert a
And query it with
$:pkb --query "WHATYOUWANTTOSEARCHHERE"