v3; defaults to pkgx^2; pure js rewrite #77

Job	Run time
eval-posix-sh	13s
eval-zsh	22s
eval-bash	27s
install-pkgx (macos-latest)	6s
linuxen (debian:buster-slim)	18s
install-pkgx (ubuntu-latest)	12s
multiple-apply-is-ok	13s
linuxen (debian:bullseye-slim)	23s
linuxen (debian:bookworm-slim)	20s
no-dirs (/usr/local)	13s
sudo-not-required	16s
linuxen (archlinux:latest)	27s
no-dirs (/usr/local/bin)	12s
linuxen (ubuntu:focal)	18s
sudo-required	16s
linuxen (ubuntu:jammy)	19s
linuxen (ubuntu:lunar)	8s
upgrades	20s
usage-as-proxy	22s
linuxen (fedora:latest)	19s
	5m 44s

Provide feedback