Every time I see a project in this space I wonder why I never got to finish a similar (in spirit) one I had. Multi-language REPL (with "data translation" across

Every time I see a project in this space I wonder why I never got to finish a similar (in spirit) one I had. Multi-language REPL (with "data translation" across languages for specific data types, so you could pass a javascript array to APL, or load a CSV file as a function in APL and send a column as a Javascript array) and built in visualisations for standard types (a matrix could show a heatmap, for instance, vectors barplots or sparklines, specific arrangements of JSON were chord plots). The goal was just to make a tool where small-scale data munching was easy (so you could get a plot of a small timeseries right now, no matplotlib, no ggplot2, no gnuplot: just having the variable on the screen meant the graph was there automatically) and as painless as possible. Of course, I didn't advance much because I needed to rewrite everything that I had working so it was easy to extend, and I found another shinier thing to work on... But that still sits in my "someday" code folder. For now, Apache Zeppelin is almost there in terms of what I want, and has spark in it so...