Allow setting check_interval via environment variables during install

Description

Currently, you cannot set the concurrent value and check_interval value without manipulating the config.toml file, which is hacky and error prone.

Requiring manipulation of the config.toml file after the fact is not a good solution.

Proposal

Allow setting these either via environment variables, or config options to the install commmand.

Edited by Steve Xuereb - Out of Office back 2026-01-05