LAUNCH INDEX

Cerulion

ROS 2-compatible robotics runtime with multi-process replay

HDWRHardware & IoT·HNShow HN

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Breakout launch

Beat 94% of Show HN launches that day

#9 of 181 on Nov 12

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#1 of 3 Hardware & IoT launches on Show HN on Nov 12. 15.0% of Hardware & IoT launches (3 of 20) reached 10+ points in the last 7 days. See Hardware & IoT →

11+11IPO

points · since listing → Nov 13, 10:27 UTC

Still tracked: re-read by each daily run while under ~168h old (window closes ~Nov 19, 20:53 UTC).

comments · buzz +4 in latest interval

13h

listed Nov 12, 20:53 UTC

Traction (points) over time

01020Nov 13ListedNov 13, 10:27 UTC · 11 points · 4 comments · 14h after listing
1 reading (one per daily ingest run). Dots are recorded values; lines just connect them — nothing in between is measured.

Key statistics

Traction
11points
Comments
4
Rank in HDWR this week
#3of 18 HN
Rank overall this week
#53of 1,038 HN
Sector hit rate
15.0%3/20 · 7D
Traction line
Hit10+ points
First reading
11Nov 13, 10:27 UTC
Last reading
11Nov 13, 10:27 UTC
Readings
1over 14h

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Grades · each graded against other Hardware & IoT launches from the same source

Momentum

—

—

Traction gained in the latest daily interval

Listed in the latest interval; no earlier reading to compare

Velocity

A

0.88 points/h

Votes per hour since listing (age capped at 48h)

Better than 93% · vs 94 Hardware & IoT · Show HN launches, last 30 days

Engagement

—

3.6 per 10 points

Comments per 10 points

Too few peers to grade (13; need 20)

Staying Power

—

—

Votes at last reading ÷ votes at first reading

Still being tracked; graded once settled (48h)

Launch-day race · #9 of 181 Show HN launches on 2026-11-12

  1. #7RealtimeVAD23 points
  2. #8A self-hosted PHP platform combining CMS, e-commerce and more, built-in13 points
  3. #9Cerulion11 points
  4. #10I built a calendar app that gives each event its own to-do list11 points
  5. #11Litek8s10 points
All launches on 2026-11-12 →

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Cerulion on Launch Index
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Data as of Nov 13, 2026, 9:22 AM UTC. Sector comes from keyword rules on the title and tagline and can be wrong. How it works