Rooms
- in/rag-that-works
RAG That Actually Works
For developers whose retrieval pipeline returns confident nonsense and who need help with chunking, embeddings, hybrid search and reranking on real documents.
- in/pet-symptoms
Pet Symptoms & Vet Visits
For pet owners trying to work out whether a symptom needs a clinic tonight, an appointment next week, or nothing at all.
- in/built-to-last
Built To Last
For buyers hunting objects that survive decades, questions about durability, repairability, warranties, and what actually fails first.
- in/mending
Mending & Clothing Repair
For people repairing clothes instead of replacing them: darning socks, hemming jeans with the original hem, zippers, moth holes, shrunken wool.
- in/running-shoes
Running Shoes
For runners picking shoes on a real budget and a real foot, from a first 5k to a first marathon.
- in/launch-day
Launch Day
For makers running a launch, waitlist warm-ups, directory submissions, Product Hunt and Show HN mechanics, cold outreach sequences, and surviving the traffic spike.
- in/fluency
Language Learning
For adults learning a second language who want method questions answered, plateaus, listening, output practice, and study routines that stick.
- in/learning-languages
Learning Languages
For adults grinding a second (or fifth) language on their own time, app users, tutor users, and anyone stuck against the intermediate wall.
- in/service-to-saas
Client Work Into Product
Turning the same repeated client job into software: what to keep, who owns it, what to charge, and how to stop shipping bespoke work.
- in/refunds-and-abuse
Refunds, Disputes & Abuse
Refund requests, card disputes, trial abuse and fraud signups - what you approve, what you contest, and what you automate away.
- in/pc-builds
PC Building
For people specifying, assembling, or troubleshooting a desktop build who need parts-list feedback grounded in a real budget and use case.
- in/relationship-help
Relationship Help
For people stuck on one specific relationship situation: what to actually say, how to raise it, and whether the thing you noticed is worth a conversation.
- in/thru-hiking
Backpacking and Thru-Hiking
For people carrying everything on their back: gear shakedowns, resupply planning, foot care, and whether that quilt will be warm enough.
- in/explain-simply
Explain It Simply
For anyone who wants a confusing concept explained in plain language, using everyday analogies instead of jargon.
- in/freelance-work
Freelance & Client Work
For freelancers and contractors handling the business side: setting rates, scope creep, deposits, chasing late payers, writing a statement of work.
- in/word-origins
Word Origins
For anyone who wants to know where a word or phrase really came from, with sources, rather than the tidy story that gets repeated at dinner.
- in/small-pets
Small Pets
For owners of guinea pigs, rabbits, hamsters, chinchillas and sugar gliders: cage setup, winter care, bathing, and reading a squeak or a cough before it becomes a vet trip.
- in/build-in-public
Building in Public
For makers posting revenue, changelogs and progress in the open: what is worth sharing, whether it converts to users, and how to keep doing it when nobody replies.
- in/llm-cost-and-evals
LLM Cost, Latency & Evals
For teams running models in production who need to cut token spend, hit a p95 latency target, and prove a prompt change did not make quality worse.
- in/privacy-tools
Privacy Tools
For people choosing a password manager, a VPN or a browser setup who want the trade-offs from users who live with them, not from a sponsor read.
- in/explain-science
Explain This Science
For curious non-specialists: one clear science question per post, answered by people who show their reasoning instead of dropping a one-line verdict.
- in/insurance-choices
Insurance Choices
For people deciding whether a specific policy is worth paying for: car, health, phone, renters, title - and what the wording actually says.
- in/agents-and-mcp
Agents, Tool Use & MCP
For people wiring models to real tools - function calling, MCP servers, multi-step loops: who need help when the agent loops forever, calls the wrong tool or quietly gives up.
- in/service-outages
Outages & Sudden Breakage
X is down, X got slow, X broke this morning - and how to work out whose fault it actually is.