Sigwire – a live TUI switchboard for every signal on your Linux box

Hey everyone, I wrote this tool for inspecting linux signals across proceses

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FL score

42

out of 100

Verdict

SKIP

low confidence

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A terminal UI for debugging Linux signal handling across processes, solving a narrow but real problem for systems engineers.

The pain

Linux developers and sysadmins spend time hunting signal issues across processes using fragmented tools like strace, ps, and manual log parsing. When signals aren't being caught or delivered correctly, diagnosis is tedious and error-prone.

The gap

No single tool provides a live, unified view of signal state across all running processes. Existing tools (strace, systemtap) require deep knowledge and don't show the complete picture in one place.

Build angle

Start by validating with 20-30 systems engineers at companies running complex Linux infrastructure. Ask them: Do you debug signal issues? How often? What's your current workflow? How much time does it waste? If they'd pay for this or use it daily, you have something. If they say 'signals rarely break for us,' you don't.

Strengths

  • Solves a real, specific problem that existing tools don't address cleanly
  • Low barrier to distribution (single binary, no dependencies)
  • Clear technical differentiation from existing debugging tools
  • Founder has hands-on expertise (built it themselves)

Risks

  • Extremely narrow audience, only systems engineers debugging signal issues, maybe 0.1% of Linux users
  • Low frequency use case, most teams don't hit signal bugs regularly enough to justify a tool
  • Requires kernel-level access and deep Linux knowledge to use effectively
  • No obvious monetization path; hard to charge for niche debugging tools
  • Could be absorbed as a feature into existing tools (strace, systemtap) or built in-house by large companies

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