activitywatch: JSONDecodeError during build or can't start downloaded zip

• [ X ] I am on the latest ActivityWatch version.
• [ X ] I have searched the issues of this repo and believe that this is not a duplicate.

• OS name and version: Linux Mint 20.2 (Ubuntu 20.04 LTS based)
• ActivityWatch version: don’t know - the very latest, from the source code / from the side

Describe the bug

I can’t start ZIP downloaded from the site, neither can compile the app.

To Reproduce

make build as per instruction from the site or ./aw-qt

Expected behavior

Documentation

$ ./aw-qt
[345866] mod is NULL - structTraceback (most recent call last):
  File "struct.py", line 14, in <module>
ImportError: cannot import name '_clearcache' from '_struct' (unknown location)
[345866] mod is NULL - pyimod02_archiveTraceback (most recent call last):
  File "PyInstaller/loader/pyimod02_archive.py", line 30, in <module>
ModuleNotFoundError: No module named 'struct'
[345866] mod is NULL - pyimod03_importersTraceback (most recent call last):
  File "PyInstaller/loader/pyimod03_importers.py", line 26, in <module>
ModuleNotFoundError: No module named 'pyimod02_archive'
Traceback (most recent call last):
  File "PyInstaller/loader/pyiboot01_bootstrap.py", line 17, in <module>
ModuleNotFoundError: No module named 'pyimod03_importers'
[345866] Failed to execute script pyiboot01_bootstrap

or

$ make build
if [ -e "aw-core/.git" ]; then \
	echo "Submodules seem to already be initialized, continuing..."; \
else \
	git submodule update --init --recursive; \
fi
Submodules seem to already be initialized, continuing...
pip install 'setuptools>49.1.1'
Requirement already satisfied: setuptools>49.1.1 in ./venv/lib/python3.8/site-packages (58.4.0)
make --directory=aw-core build
make[1]: Entering directory '/home/alex/Applications/activitywatch/aw-core'
poetry install
Installing dependencies from lock file

Package operations: 0 installs, 2 updates, 0 removals

  • Updating coverage (5.5 -> 6.0.2)
  • Updating python-json-logger (0.1.11 -> 2.0.2): Failed

  JSONDecodeError

  Expecting value: line 1 column 1 (char 0)

  at ~/.local/lib/python3.8/site-packages/simplejson/decoder.py:400 in raw_decode
      396│             if ord0 == 0xfeff:
      397│                 idx += 1
      398│             elif ord0 == 0xef and s[idx:idx + 3] == '\xef\xbb\xbf':
      399│                 idx += 3
    → 400│         return self.scan_once(s, idx=_w(s, idx).end())
      401│ 

make[1]: *** [Makefile:4: build] Error 1
make[1]: Leaving directory '/home/alex/Applications/activitywatch/aw-core'
make: *** [Makefile:30: build] Error 2

Additional context

Don’t know… my Linux installation seems to be pretty much normal, I suppose…