Development releases of LuaTeX in TeX Live
Disclaimer: I don't take any responsibility for your broken TeX Live installation.
The only architecture available at the moment is x86_64-linux.
Install
curl -fsSL http://hmenke.github.io/texlive-luatex-dev/luatex-dev.asc | tlmgr key add -
tlmgr repository add http://hmenke.github.io/texlive-luatex-dev luatex-dev
tlmgr pinning add luatex-dev "*"
tlmgr update --self --all
tlmgr install luatex --reinstall
Remove
tlmgr pinning remove luatex-dev "*"
tlmgr install luatex --reinstall