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As a lifelong printf debugger in many languages, what I'd prefer is to be able to send my printf's into different streams and have a scrollable, filterable and searchable console for each stream

Kinda like the console in web developer tools (F12)

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Print a known prefix every time you log. Or slap together a simple logging module that adds said prefix. Then to browse, use `tail -f log_file.txt | grep "PREFIX - "`. Console tabs makes it easy enough so that doing this with a bash script and opening tabs for each log prefix has fulfilled my need for such a tool.

Are you looking for the log module, but with a UI on top of it (something like splunk, but for local development)?

I think we all ultimately want Chrome DevTools features for Go :)

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