Install opp_repl from PyPI or source, pick the right optional extras (mcp, cluster, chart, optimize, github, ide, all), and set up the shell environment (source OMNeT++ setenv, then opp_repl setenv). Use before any other opp-repl-* skill. Covers Python 3.10+ venv pattern, Ubuntu PEP-668 pitfall, and
Install opp_repl from PyPI or source, pick the right optional extras (mcp, cluster, chart, optimize, github, ide, all), and set up the shell environment (source OMNeT++ setenv, then opp_repl setenv). Use before any other opp-repl-* skill. Covers Python 3.10+ venv pattern, Ubuntu PEP-668 pitfall, and how to verify the install.