To set things up:

pipenv install --dev

Creata a .env file with these lines (and appropriate values):

export JIRA_URL=<url of your Jira cloud instance>
export JIRA_ACCOUNT=<account to use; looks like an email address>
export JIRA_KEY=<a key you get somehow from Jira associated with the account>

To build the database, jira.db with tickets from the projects FOO, BAR, and BAZ:

pipenv run ./build_db.py FOO BAR BAZ

Then:

sqlite3 jira.db

and go to town!