alternative to https://github.com/sagemathinc/cocalc/pull/3273
alternative to https://github.com/sagemathinc/cocalc/pull/3273

sagemathinc/smc,DrXyzzy/smc,sagemathinc/smc,DrXyzzy/smc,DrXyzzy/smc,tscholl2/smc,sagemathinc/smc,tscholl2/smc,DrXyzzy/smc,tscholl2/smc,tscholl2/smc,sagemathinc/smc,tscholl2/smc