README: Update example flake.nix to use buildEnv

lopsided98 / nix-ros-overlay

ROS overlay for the Nix package manager

Apache License 2.0

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Open wentasah opened 2 months ago

wentasah commented 2 months ago

Currently, quite a few things are broken when ROS packages are used directly without buildEnv.

Closes #396 #401 Related #362

Pleune commented 2 months ago

This is required to make even basic packages like rqt work. I would second this being a recommended approach.