gistfile1.txt

chk.hs on  packaging-stuff [$✘»!+?] via λ 8.10.7 via ❄️  impure (ghc-shell-for-packages-0) 
❯ cat cabal.project
package *
        coverage: True
        library-coverage: True

chk.hs on  packaging-stuff [$✘»!+?] via λ 8.10.7 via ❄️  impure (ghc-shell-for-packages-0) 
❯ ls -l tahoe-chk.cabal 
-rw-r--r-- 1 exarkun users 2918 Feb  1 14:56 tahoe-chk.cabal

chk.hs on  packaging-stuff [$✘»!+?] via λ 8.10.7 via ❄️  impure (ghc-shell-for-packages-0) 
❯ cabal build
Warning: There are no packages or optional-packages in the project
Error: cabal: There is no <pkgname>.cabal package file or cabal.project file.
To build packages locally you need at minimum a <pkgname>.cabal file. You can
use 'cabal init' to create one.

For non-trivial projects you will also want a cabal.project file in the root
directory of your project. This file lists the packages in your project and
all other build configuration. See the Cabal user guide for full details.