...and only if you invoke it with --dangerously-run-postinstall-scripts; otherwise it will report an error if a postinstall script is found. This is definitely

...and only if you invoke it with --dangerously-run-postinstall-scripts; otherwise it will report an error if a postinstall script is found. This is definitely going to affect any packages that need to link to native code and/or compile shims, but these are very few.