I put this homemade viewer, mjmdatascope, on github,

On the one hand this is a big distraction but it is something I wanted to do
before and AFAICT there is not a good way to look at 1D data in FF.
I’ve been using this viewer for testing some code and also wrote an
interface to “R.” While very primitive, its asynchronous unreliable remote
interaction has a lot of benefits foe development at leas the way I work.
If there is an appropriate audience it is developers or people with an
immediate need for specific displays. I’ve been working only with normalized
data so even simple things like scale to fit do not exist but there are a lot of
stubs for that stuff.