I'd love to see an open source real user metrics analytics system like this. Lighthouse is great for getting a general idea of web perf but it doesn't tell you

I'd love to see an open source real user metrics analytics system like this. Lighthouse is great for getting a general idea of web perf but it doesn't tell you what real users experience. Currently the only way I've found to cobble together something like this is Perfume.js with some backend that feeds into Influx/Grafana, which can be a lot to set up.