Fyi we were considering last year replacing "file address" syntax with "generated target" syntax.

dir:tgt#app.py

rather than

dir/app.py:tgt

. A benefit would be that

path/to/file.py:../../all-sources

becomes

//:all_sources#path/to/file.py

withou the

../

part. But we decided file address syntax is generally better, and it's part of why we recommend 1-1-1 to avoid the awkwardness of

../