Ideas Lab
Real problems people complain about online, pulled every morning and scored out of 100. Build, validate, or skip. How scoring works
- Ideas
- 4,145
- BUILD
- 689
- Sources
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- 5h ago
Professionals run out of authentic LinkedIn post ideas
LinkedIn users struggle with consistent posting because they lack ideas and generic AI generates content that doesn't match their personal voice, leading to lost client opportunities.
X6mo agoToolMarketing & Sales
Indie hackers face bankruptcy from surprise serverless cloud bills
Serverless platforms like Vercel deliver massive unexpected bills (e.g., $6.5k) due to unpredictable usage, forcing devs to abandon viable projects despite good traffic.
X6mo agoOtherDev
Sales teams struggle to find leads from recently funded startups
No centralized tool to discover and contact customers from companies that just raised funding, wasting time on manual research.
X6mo agoToolOther
Startups rely on outdated resumes for hiring instead of portfolios
Traditional resumes fail to showcase real skills; startups need an AI-powered ATS using quick-build digital portfolios for better candidate evaluation.
X6mo agoToolHR & Career
Can't access AI assistant capabilities from phone without switching apps or losing context
Knowledge workers and developers frequently need to interact with Claude while away from their desktop, but current workflows require either switching between devices, losing conversation history, or using limited mobile interfaces. This creates friction when they're on the go and need to delegate tasks, ask questions, or maintain continuity with an ongoing project that Claude is helping with. They end up either waiting until they're back at their desk or using suboptimal mobile solutions that don't have full capability access.
Product Hunt6mo agoToolProductivity
Premium instant coffee quality
Delivering specialty coffee quality through crystallized/powdered form without refrigeration needs. The problem is real: coffee lovers want convenience without sacrifice.
YC Graveyard9y agoOtherFood & Nutrition
Interactive body-based fitness/entertainment experiences
Making fitness or interactive experiences more engaging through body interaction technology. The market for gamified fitness and interactive entertainment has grown significantly with platforms like Fitness+, Peloton, and VR fitness.
YC Graveyard11y agoToolSport & Fitness
Fragmented ticket discovery and aggregation across multiple vendors
Fans struggle to discover events across ticket platforms. A unified search/discovery layer across Ticketmaster, Vivid Seats, StubHub, and emerging platforms could help users find events faster.
YC Graveyard18y agoToolEntertainment
Financial literacy and banking for teenagers
Fintech education products teaching teenagers how to manage money, save, and understand banking. The problem is very real—teen financial literacy is low. Regulatory barriers have lowered with neo-bank tools.
YC Graveyard5y agoTemplateEducation
Fragmented prenatal care coordination and support for pregnant people
Pregnant people struggle to coordinate multiple healthcare providers, access timely specialist advice, and connect with support resources. Ruth Health tried to build a telehealth hub addressing this fragmentation, which remains a real problem despite the startup's failure.
YC Graveyard5y agoTemplateMedicine & Health
Payments and working capital for small construction contractors
Simplified payment processing and short-term financing for small-scale construction crews managing labor/material costs.
YC Graveyard5y agoToolFinance
Lightweight fantasy sports gaming on messaging apps
Frictionless fantasy sports gameplay embedded in Messenger for asynchronous play with friends. The problem (fragmented fantasy sports experience, need for easier entry-point gaming) is real, and AI tools now make building lean game mechanics and scoring engines faster.
YC Graveyard9y agoToolSport & Fitness
Commodity trading infrastructure for African markets
Building a transparent, digital commodity exchange for agricultural products in Africa to improve farmer access and price discovery. The problem is real: farmers still face opaque pricing and limited market access.
YC Graveyard9y agoToolAgTech
Car Health & Maintenance Monitoring Without Professional Diagnostics
Car owners struggle to understand vehicle health, maintenance needs, and potential issues without visiting a mechanic. Modern cars generate rich diagnostic data that goes unused by owners.
YC Graveyard12y agoToolTransportation
Portable toxin detection device
Simple hardware device for detecting toxins (pesticides, contaminants) in food/water. Consumer pain point remains real as food safety concerns persist.
YC Graveyard10y agoToolConsumer
Quick-access working capital for commercial vehicle operators
Instant short-term loans for trucking companies needing emergency capital for fuel, repairs, or tolls.
YC Graveyard5y agoToolFinance
Decentralized identity and reputation systems
Building decentralized, pseudonymous identity systems that maintain accountability. The problem (identity and trust on the internet) is real and increasingly urgent as AI-generated content proliferates.
YC Graveyard4y agoTemplateAI
Professional identity and discovery beyond resumes
LinkedIn's resume-centric model misses the nuance of who professionals really are. A richer profile format could better surface talent and enable more authentic professional connections.
YC Graveyard7y agoToolHR & Career
Open-source playground to red-team AI agents with exploits published
We build runtime security for AI agents. The playground started as an internal tool that we used to test our own guardrails. But we kept finding the same types of vulnerabilities because we think about attacks a certain way. At some point you need people who don't think like you.So we open-sourced it. Each challenge is a live agent with real tools and a published system prompt. Whenever a challenge is over, the full winning conversation transcript and guardrail logs get documented publicly.Building the general-purpose agent itself was probably the most fun part. Getting it to reliably use tools, stay in character, and follow instructions while still being useful is harder than it sounds. That alone reminded us how early we all are in understanding and deploying these systems at scale.First challenge was to get an agent to call a tool it's been told to never call.Someone got through in around 60 seconds without ever asking for the secret directly (which taught us a lot).Next challenge is focused on data exfiltration with harder defences: https://playground.fabraix.com
Hacker News6mo agoToolAI
Sub-millisecond VM sandboxes using CoW memory forking
I wanted to see how fast an isolated code sandbox could start if I never had to boot a fresh VM.So instead of launching a new microVM per execution, I boot Firecracker once with Python and numpy already loaded, then snapshot the full VM state. Every execution after that creates a new KVM VM backed by a `MAP_PRIVATE` mapping of the snapshot memory, so Linux gives me copy-on-write pages automatically.That means each sandbox starts from an already-running Python process inside a real VM, runs the code, and exits.These are real KVM VMs, not containers: separate guest kernel, separate guest memory, separate page tables. When a VM writes to memory, it gets a private copy of that page.The hard part was not CoW itself. The hard part was resuming the snapshotted VM correctly.Rust, Apache 2.0.
Hacker News6mo agoToolAI