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Show HN: Polymorph (YC W26) – AI personalization for consumer app engagement

https://usepolymorph.com/
1•andrewsy•1h ago
hi! we're andrew, david, and manas, 3 engineers & ex-roommates. previously, we built things like meta’s self-serve ads platform, scale ai’s ml inference infra, and more.

we’re building Polymorph, which uses AI to help consumer and self-serve apps send the right message at the right time, through the right channel, to maximize conversion.

right now, if consumer apps want to send push notifications or emails to users, they have to write manual queries and build user segments themselves. even then, the message can only get so personalized.

this sucks for both sides:

1. end user gets content that's irrelevant or not helpful 2. builders annoy their users and then they churn

Polymorph is bringing targeting tech that's already in big tech to everyone.

in a few clicks, you could connect your existing analytics stack (PostHog, Datadog, Amplitude, etc), we then build per-user profiles that highlight when they're active, what features they like, and more, our AI agents then decide which channel and times are most likely to increase engagement, and continuously iterate.

we've already seen a 3.6x increase in re-engagement across one customer's churned users, while sending fewer total notifs / emails per person.

over the last month, we've help our customers profile and re-engage millions of users. we're still figuring out our cost structure, so if you're interested, reach out to founders@usepolymorph.com.

in the mean time, see what you'd look like in our avatar generator on our landing page~

Asus Executive Says MacBook Neo Is 'Shock' to PC Industry

https://www.macrumors.com/2026/03/10/asus-executive-says-macbook-neo-is-a-shock/
2•alwillis•3m ago•0 comments

The Elders (Organization)

https://en.wikipedia.org/wiki/The_Elders_(organization)
1•beatthatflight•3m ago•0 comments

Show HN: OpenClaw Plugin for Claude Code and Codex Orchestration

https://github.com/goldmar/openclaw-code-agent
1•goldmar•5m ago•0 comments

BunnyCDN silently breaks Mastodon request signing, preventing DDoS protection

https://social.mikutter.hachune.net/@mok/116208294430782702
1•mystraline•7m ago•0 comments

MetaLayer –Compare answers of multiple AI models and generate a consensus result

https://metalayerlabs.com
1•PaulmHope•9m ago•1 comments

Bondi, Miller, Rubio, Noem, Hegseth Have Relocated to Military Bases (NYT)

https://www.nytimes.com/2026/03/10/us/politics/bondi-military-housing-threats.html
3•tbreschi•15m ago•1 comments

Eric Schmidt: China Could Dominate the Physical AI Future

https://time.com/7382151/china-dominates-the-physical-ai-race/
2•Anon84•19m ago•0 comments

Ask HN: How do you prevent MCP agents from looping in production?

3•aethis•20m ago•0 comments

Iran's Control of Hormuz Means It's Exporting More Oil Today Than Before the War

https://www.wsj.com/world/middle-east/irans-control-of-hormuz-means-its-exporting-more-oil-today-...
1•JumpCrisscross•26m ago•0 comments

Rlclaw autonomous ML research companion

https://github.com/photon-cat/rlclaw
2•photoncat•28m ago•1 comments

The "Bloomberg Terminal" for Agents – Real-Time Intelligence API for AI Agents

https://thepolarisreport.com/agents
1•JohnWeston•29m ago•1 comments

Towards a Neural Debugger for Python

https://arxiv.org/abs/2603.09951
1•E-Reverance•36m ago•0 comments

Semantically search 45k+ AI skills

https://skillsgate.ai/
2•sultanvaliyev•40m ago•1 comments

Python library for translating between embedding model vector spaces

https://github.com/PotentiallyARobot/EmbeddingAdapters/
3•Taranovski•44m ago•1 comments

Robinhood Agent Integration

https://github.com/kevin1chun/rh-for-agents
3•kevin1chun•55m ago•0 comments

Show HN: FizzBuzz Forever – Agent Edition

https://github.com/dleemiller/fizzbuzz-forever
1•deepsquirrelnet•1h ago•0 comments

T9 in the Terminal for Codex, Claude, Gemini

https://github.com/Xsamsx/T9T
1•kyivctoner•1h ago•1 comments

Writing my own text editor, and daily-driving it

https://blog.jsbarretto.com/post/text-editor
7•todsacerdoti•1h ago•0 comments

Why Systems Optimized for Metrics Eventually Drift from Reality [pdf]

https://offbrandguy.com/wp-content/uploads/2026/03/optimization-trap-reality-drift-framework-2023...
2•realitydrift•1h ago•1 comments

Show HN: OpenClaw skill for think-tank style analysis of crises like Iran war

https://github.com/vassiliylakhonin/global-think-tank-analyst
1•vassilbek•1h ago•1 comments

Ask HN: What are some good lectures or talks like this one? [pdf]

https://www.labouseur.com/projects/codeReckon/papers/The-Emperors-Old-Clothes.pdf
1•jdironman•1h ago•2 comments

New Design for Firefox.com

https://www.firefox.com/en-US/
4•pentagrama•1h ago•0 comments

Recursive Problems Benefit from Recursive Solutions

https://jnkr.tech/blog/recursive-benefits-recursive
3•luispa•1h ago•0 comments

How HN: Specwatch – Generate OpenAPI specs by watching live API traffic

https://github.com/rajeevramani/specwatch
1•rajeevramani•1h ago•1 comments

Storm [video]

https://www.youtube.com/watch?v=HhGuXCuDb1U
1•nomilk•1h ago•0 comments

Zig – Type Resolution Redesign and Language Changes

https://ziglang.org/devlog/2026/#2026-03-10
32•Retro_Dev•1h ago•3 comments

The tests are the code now

https://softwaredoug.com/blog/2026/03/10/the-tests-are-the-code-now.html
5•zdw•1h ago•0 comments

Show HN: Assemble – Claude Code skill for parallel AI team execution

https://github.com/LakshmiSravyaVedantham/assemble
1•sravyavedantham•1h ago•0 comments

Breaking Control Flow Integrity by Abusing Modern C++ (Coroutines) – BH USA 2025 [video]

https://www.youtube.com/watch?v=hxIPoi4ONNA
2•matt_d•1h ago•0 comments

Show HN: ImageHost.ing – burn-after-reading image host on Cloudflare's free tier

https://imagehost.ing
1•lzy•1h ago•0 comments