Has anyone built their own automated stock research stack?

Much of the discussion on here very much revolves around “actual” algo trading. I am more interested in the "research" side of things. For those who invest long (or short) in common stock, what does your research setup look like? Is it still mostly manual, or have you managed to automate a meaningful part of it? I'm talking about the news monitoring, filings, transcripts and IR releases, spotting themes early, screening companies and deciding what is genuinely worth pursuing. Have you built your own proprietary research stack around this? I am trying to do something similar myself, and it is proving much harder to design and structure than expected. You are caught between a rock and a hard place. Keep it too simple and it adds very little. Build too much and you end up with an elaborate machine producing too much noise, overwhelming yourself even more. Keen to hear from anyone who has designed their own stack from scratch, particularly the pitfalls, what actually works, and what turned out to be a complete waste of time. Many thanks.