Fix for Mac

[bsplonka]

Hey.
I love your work! It is incredible, and I support your choice to make it open source.

After struggling for several days to get it to work on a Mac, I finally overcame the problem with
RuntimeError: launch_passiverequires that the Python script be run undermjpython on macOS

I fixed it by telling dora explicitly to use mjpython, but only for the simulation part!

nodes:
  - id: hand_tracker
    build: pip install -e HandTracking
    path: HandTracking/HandTracking/main.py
    inputs:
      tick: dora/timer/millis/50
    outputs:
      - hand_pos

  - id: hand_simulation
    build: pip install -e AHSimulation
    path: mujoco-venv/bin/mjpython
    args: AHSimulation/AHSimulation/mj_mink_right.py
    inputs:
      hand_pos: hand_tracker/hand_pos
      tick: dora/timer/millis/2
      tick_ctrl: dora/timer/millis/10
    outputs:
      - mj_joints_pos

I hope this helps others to also get it to run on a Mac.
Keep in mind however, to clone into a folder, that dora has access to!

[SteveNguyen]

Ok I see you are right with MacOS we have to use mjpython.
I will have to find a way of doing it without breaking the linux build.
I also need to make it work work windows though...