* chore: remove support for Python 3.7 (EOL)
- See support timeline here: <https://devguide.python.org/versions/>

* fix: mdformat

* chore: brush up README content

* fix: more code snippet highlights

* fix: mdformat

* chore: more highlights

fix: Dockerfile syntax warnings
- consistent casing
- `ENV <key>=<value>`

…env variable (#636)

* chore(wip): define a bottle wrapper

* chore(wip): adjust test files

* chore(wip): adjust import

* chore(wip): adjust import

* chore(wip): adjust related mentions

* fix: right paths in config files

* fix(wip): format `test_main.py`

* fix: format README

* fix: include sub-modules in `setup.py`

* chore: allow environment-driven patch

* fix: formatting

* chore(wip): add doctest to `env` overrides

* chore(wip): collect doctests in tox

* chore(wip): regular `pytest` test instead of `doctest`

* fix: reload import

* chore: explicit override check

* fix: typing

* chore: add `README.md` to `fixtures/`

* chore(wip): init a `mypkg_heavy` fixture

* chore: remove empty string

* chore(wip): more clear placeholder setup

* chore: reorganise the `mypkg_heavy`

* chore: add `mypkg_heavy` to Makefile

* chore(wip): prepare for testing with `mypkg_heavy`

* fix: typo

* fix: checking paths

* chore: reorganizing

* fix: forgotten `return`

* chore(wip): naive patch for heavy packages test case

* fix: port access

* fix: build fixture

* fix: proper fixture access

* fix: black format

* fix: docker argument order

* chore(wip): test a failing option

* chore: enable test with a `~150MB` package upload

* chore: add basic `README` notice

* chore: pin the `types-setuptools` until a proper follow-up

* chore: title convention

#642)