...not yet with all flags, but that's the next step.
This surfaced several problems not caught by the existing "full" build,
because that did not enable dependencies conditionally enabled if a
second module is enabled.
There are a small number of dependencies only enabled if a second module
is *not* enabled, which I intend to add some manual tests for.
They do not have src set, so if we pull them in without having a pin
they fail to build.
Noticed with org, so add a test for that. Probably not the only one
affected, though.
Fixes#4
This seems to be much more space-efficient: ~/.cache/nix/tarball-cache
is about 700MiB uncompressed, under 300MiB as tzst (using tar's
defaults, CI uses zstdmt but I assume will be in the same ballpark). The
gitv3 cache is multiple GiB.
CI will still build doom-example using fetchGit. I intend to shrink the
number of modules enabled in the example to keep gitv3 cache size under
control.
