Who's the target audience?
Very small marketing teams and other content marketers
It's timeconsuming to look for a svg file, edit it, upload and deploy the change
SVG file library with the most basic of editing (slap some text on it) that's remote hosted
How quickly can a MVP be built?
A long weekend
Are they spending money on it / Whats the substitute?
More complex SVG animation / editors, inkscape
How will I get the first 25/250 customers?
Marketing forumns, content marketing slack channels, add a link at the bottom of the svgs served
If it works, will it be sustainable?
Monthly hosting fees, on a per domain basis (x for free per domain per month)
Am I the person to build this business?