Create a server (go) and webapp (vue) development tool to explore OPDS-PS capable servers. This tool is intended for development purposes only, it should allow to navigate the server, view raw requests and responses and interact with the API in a general way. I think it's best if we provide a columns layout to navigate the OPDS-PS server much like the macos finder does, with a panel with details to the far right for technical information.
Here's the SPEC: https://specs.opds.io/