Then we have to `fixInstall` to handle the consequences

If you activate this shell for your IDE (*cough* emacs *cough*) and enable its
language server support then you will now have a Haskell language server
available.

If you `direnv allow` in PrivateStorageMobile then the shell activation will
happen for you.

On Android, use android-activity to discover the right path.  On Linux, use
xdg-datadirs.

However:

```
Configuring android-activity-0.1...
CallStack (from HasCallStack):
  die', called at libraries/Cabal/Cabal/Distribution/Simple/Configure.hs:950:20 in Cabal-2.4.0.1:Distribution.Simple.Configure
  configureFinalizedPackage, called at libraries/Cabal/Cabal/Distribution/Simple/Configure.hs:460:12 in Cabal-2.4.0.1:Distribution.Simple.Configure
  configure, called at libraries/Cabal/Cabal/Distribution/Simple.hs:596:20 in Cabal-2.4.0.1:Distribution.Simple
  confHook, called at libraries/Cabal/Cabal/Distribution/Simple/UserHooks.hs:67:5 in Cabal-2.4.0.1:Distribution.Simple.UserHooks
  configureAction, called at libraries/Cabal/Cabal/Distribution/Simple.hs:178:19 in Cabal-2.4.0.1:Distribution.Simple
  defaultMainHelper, called at libraries/Cabal/Cabal/Distribution/Simple.hs:115:27 in Cabal-2.4.0.1:Distribution.Simple
  defaultMain, called at Setup.hs:2:8 in main:Main
Setup: Encountered missing dependencies:
base >=4.9 && <4.11
```

The earlier package name made the build fail:

> FAILURE: Build failed with an exception.
> * What went wrong:
> Execution failed for task ':processDebugResources'.
>> Package 'storage.private.privatestoragemobile' from AndroidManifest.xml is not a valid Java package name as 'private' is a Java keyword.

This is what current stable Obelisk running on NixOS 22.11 gives me.
I.e. `ob init` in this folder.

Refs #10.