Using check = false disables tests altogether

[khazaddum]

I have a test suite that needs some config and specific environment to run, so I use check = false to disable the checkPhase during flake installation.

However, when trying to run the test suite manually in my dev environment, I get:

Cannot test the package pkg-0.1.0.0 because none of the components are available to build: the test suite 'pkg-tests' is not available because the solver picked a plan that does not include the test suites, perhaps because no such plan exists. To see the error message explaining the problems with such plans, force the solver to include the test suites for all packages, by adding the line 'tests: True' to the 'cabal.project.local' file

How can I have the tests be available for manual/CI running, but disabled for flake installation?