EigenCode

What it does

EigenCode diagnoses your technical interview gaps in 5 adaptive questions, then serves the single next problem that moves you most. Covers algorithms, stats, and ML in one unified skill model. No grinding.

• 
  FaceCode 2.02021 · ▲165

  The intelligent coding interview tool

• SP
  SkillUpper – practice coding interview questions step-by-step2018 · skillupper.com · ▲143
• EP
  Every problem and solution in Beyond Cracking the Coding Interview2025 · ▲151

  Hey HN, I'm Aline, founder of interviewing.io and one of the authors of Beyond Cracking the Coding Interview (the official sequel to CTCI). We just compiled every problem (and solution) in the book and made them available for free. There are ~230 problems in total. Some of them are classics like n-queens, but almost all are new and not found in the original CTCI. You can read through the problems and solutions, or you work them with our AI Interviewer, which is also free. I'd recommend doing AI Interviewer before you read the solutions, but you can do it in whichever order you like. (When…

• 
  NOT THE PIPELINE2021 · ▲75

  Take a 5 minute quiz and fix your tech interview

• 
  Interview Code Ace2025 · ▲146

  The ultimate, invisible AI powered tool for interviews

• 
  FaceCode2019 · ▲85

  Hire top tech talent with video interviews

• TL
  The load-bearing vocabulary of Claude▲703

  Life & fun · 10d ago · louisabraham.github.io

• 
  Articos▲385

  Launch with confidence, not gut instinct

  Life & fun · 12d ago · articos.com

• 
  Nex▲351

  Claude Cowork for high-volume GTM workflows

  Life & fun · 4d ago · nex.ai

• 
  iPhone app takes simultaneous images from 2 lenses, fuses into 1 photo▲329

  Photosynthesis fires two of your iPhone

  Life & fun · 29d ago · photosynthesis.camera

• CC
  Creatium Coach▲320

  Your multimedia mentor that takes you from mid to great

  Life & fun · 11d ago · producthunt.creatium.info

• 
  SoloUno▲310

  Take control of hair pulling, nail biting & skin picking

  Life & fun · 28d ago · solouno.io

• 
  Brew ▲905

  Like Claude design for email marketing

  AI · May 2026 · brew.new

• 
  Kilo Code for VS Code▲897

  Parallel agents, diff reviewer, and multi-model comparisons

  Dev tools · May 2026 · kilo.ai

• 
  StoreClaw▲805

  Grow your store profits with agents that know how to sell

  AI · May 2026 · storeclaw.ai

• 
  PollyReach▲796

  Give your agent a real number and voice to make calls.

  AI · May 2026 · pollyreach.ai

• NW
  Needle: We Distilled Gemini Tool Calling into a 26M Model▲776

  Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…

  Life & fun · May 2026 · github.com

• FM
  Files.md – Open-source alternative to Obsidian▲730

  Dev tools · May 2026 · github.com