What people keep complaining about in public discussions, and how a small team could step in.
The author built a personal tool to route only specific domains through a VPN tunnel, with a dashboard showing traffic and errors, because switching VPNs back and forth is annoying. Others with the same need would likely use a polished version.
A developer who manages heavily commented Google Sheets (70+ threads across many tabs and up to 50 collaborators) found no built-in or third-party way to export, count, sort, or track comment threads with cell locations. He built a browser-based tool using the xlsx export plus JSZip. This is a narrow but real gap for teams that rely on Sheets comments for review and risk tracking.