Another way to verify activity within the last couple of years is to see that the last release at https://ftp.gnu.org/gnu/librejs/?C=M;O=D https://ftp.gnu.org/g

Another way to verify activity within the last couple of years is to see that the last release at https://ftp.gnu.org/gnu/librejs/?C=M;O=D https://ftp.gnu.org/gnu/librejs/?C=M;O=D is from last fall. OTOH, there hasn't been a test release since 2016, so keeping that section does contribute to the idea that it's no longer active. It's clear the page is pretty old, with both "http" and "ftp" download links. FWIW, the http link redirects to https, and (warming the heart of this old Unix developer) the ftp link still works.