LAUNCH INDEX

OpenSwells

free, open-source surf forecasts for 5,800 spots

OSRCOpen Source & Libraries·HNShow HN

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Middle of the pack

Beat 50% of Show HN launches that day

#59 of 181 on Nov 12

Share on X

#4 of 8 Open Source & Libraries launches on Show HN on Nov 12. 10.5% of Open Source & Libraries launches (2 of 19) reached 10+ points in the last 7 days. See Open Source & Libraries →

20

points · traction gained Nov 12, 10:31 UTC → Nov 13, 10:27 UTC · % shown only when the previous traction was 5+

Still tracked: re-read by each daily run while under ~168h old (window closes ~Nov 19, 02:42 UTC).

comments · buzz +1 in latest interval

32h

listed Nov 12, 02:42 UTC

Traction (points) over time

012Nov 13ListedNov 12, 10:31 UTC · 2 points · 2 comments · 8h after listingNov 13, 10:27 UTC · 2 points · 3 comments · 32h after listing
2 readings (one per daily ingest run). Dots are recorded values; lines just connect them — nothing in between is measured.

Key statistics

Traction
2points
Comments
3
Rank in OSRC this week
#14of 27 HN
Rank overall this week
#339of 1,038 HN
Sector hit rate
10.5%2/19 · 7D
Traction line
Below10+ points
First reading
2Nov 12, 10:31 UTC
Last reading
2Nov 13, 10:27 UTC
Readings
2over 32h

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Grades · each graded against other Open Source & Libraries launches from the same source

Momentum

C

+0 points

Traction gained in the latest daily interval

Better than 43% · vs 21 still-tracked Open Source & Libraries · Show HN launches

Velocity

B

0.07 points/h

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

Better than 68% · vs 101 Open Source & Libraries · Show HN launches, last 30 days

Engagement

—

—

Comments per 10 points

Needs 10+ points; below that the ratio is mostly noise

Staying Power

—

—

Votes at last reading ÷ votes at first reading

Still being tracked; graded once settled (48h)

Launch-day race · #59 of 181 Show HN launches on 2026-11-12

  1. #57AntFabric (One Subscription for all your operational needs)2 points
  2. #58Rusty Valve2 points
  3. #59OpenSwells2 points
  4. #60Receipts, agent skills that make PRDs and metrics cite their evidence2 points
  5. #61Lynx2 points
All launches on 2026-11-12 →

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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