I'm working on a digital waveform viewer for VScode. I started it back when I used to work for an FPGA company, and needed to debug soft CPUs. Now it's starting to rival the proprietary software. I should probably do a show HN at some point...

https://github.com/Lramseyer/vaporview

Very cool but being tied to a code editor is not ideal. Have you ever looked at https://surfer-project.org?