Specify file lines on forced selection

[AlexB52]

People have expressed interest in running only spec on certain lines in this topic discussion

Something like bin/rspec path.rb:123 or bin/rails test path.rb:123
This seems to be really useful for minitest runner, rspec often comes with the :force tag (but not always). There is no way to force specs on the Minitest runner natively.

Question: How can we implement this without degrading the user experience?