The gl4es is giving problems with LIBGL_ES=2 for me. Black screen most of the time. Working on that.
Meanwhile, a dream has come true, for me at least - seeing a linux handheld with REAL OpenGL hat outperforms the HP and SGI workstations of my youth

This is the original glmatrix by Jamie Z.

http://0x0.st/iYhi.webm
Music by my old IRC pal: Caeks - Eukleides