If you don't want to deal with this, you can download pre-packaged executables from the [Releases](https://gitlab.com/faerbit/fime/-/releases) section.
The Jira URL will just be the base URL to you're Jira Instance (e.g. `https://jira.company.com`)
The Jira Token is a Personal Access Token. See [here](https://confluence.atlassian.com/enterprise/using-personal-access-tokens-1026032365.html) on how to get one.