# AC0.AI

> AC0 is a hands-on distribution and technology partner for founder-led European B2B and B2B2C companies with a proven offer and existing customers. We find the growth bottleneck, build the connected system and operate the first loops. Core capabilities include B2B demand generation, AI-powered B2B2C distribution, go-to-market, revenue operations, website conversion, AI automation and European market expansion.

## Growth systems

- [B2B demand generation](https://www.ac0.ai/en/services/b2b-demand-generation-europe): Positioning, content, search and targeted outreach connected to one measurable pipeline objective.
- [Go-to-market in Europe](https://www.ac0.ai/en/services/go-to-market-europe): An executable European GTM system for companies that have customers but need a clearer route to the next stage.
- [Revenue operations & automation](https://www.ac0.ai/en/services/revenue-operations-automation): CRM, attribution and automation that remove real growth friction without turning the company into a systems project.
- [B2B website conversion](https://www.ac0.ai/en/services/b2b-website-conversion): Positioning, high-intent pages, application flows and measurement designed as one B2B conversion system.
- [AI automation for B2B](https://www.ac0.ai/en/services/ai-automation-for-b2b): Practical AI and workflow automation tied to a real growth bottleneck, with review paths and measurable value.
- [European market expansion](https://www.ac0.ai/en/services/european-b2b-market-expansion): Market selection, localized conversion and focused distribution for B2B companies entering or expanding across Europe.
- [AI-powered B2B2C distribution](https://www.ac0.ai/en/services/ai-powered-distribution-b2b2c): Partner activation, end-customer demand and AI-assisted operations connected in one measurable B2B2C distribution system.

## Case studies

- [From partner introductions to customer sales](https://www.ac0.ai/en/cases/partner-to-consumer-distribution): Joined five customer services, sales follow-up and source tracking so a partner introduction could lead to more than one useful sale. Verified scope: 5 customer journeys · 7 tracked sales sources.
- [Sharkproofed: useful AI feedback from video](https://www.ac0.ai/en/cases/evidence-bound-ai-product): Built Sharkproofed: a mobile product that watches a short pitch, explains its score and gives the founder a clear reason to try again. Verified scope: 90-second recording · 2 checks before feedback.
- [EU Inc: clear answers about changing European rules](https://www.ac0.ai/en/cases/multimarket-decision-engine): Built EU Inc to turn changing European company rules into clear, sourced pages people can find through Google in four languages. Verified scope: 4 active languages · 15 pages shown to search engines.
- [Twelve specialist guide sites that learn together](https://www.ac0.ai/en/cases/owned-demand-portfolio): Connected twelve specialist websites so source checks, Google data, technical fixes and affiliate controls could be reused. Verified scope: 12 specialist websites · one shared way of working.

## AC0-owned projects

These are public products and specialist sites built and operated by AC0, not client work.

- [Sauna Guide](https://sauna.guide/): Independent home sauna buying guide.
- [Cold Plunge Guide](https://coldplunge.guide/): Cold plunge and ice bath buying guide.
- [Hot Tubs Guide](https://hottubs.guide/): Hot tub and swim spa buying guide.
- [Backyard Office Guide](https://backyardoffice.guide/): Prefab backyard office buying guide.
- [Water Filter Guide](https://waterfilter.guide/): Home water filter and softener guide.
- [Greenhouses Guide](https://greenhouses.guide/): Greenhouse planning and buying guide.
- [Generators Guide](https://generators.guide/): Home backup and portable generator guide.
- [Home Battery Guide](https://homebattery.guide/): Home battery and backup power guide.
- [Heat Pumps Guide](https://heat-pumps.guide/): Home heat pump planning and buying guide.
- [Home Charging Guide](https://homecharging.guide/): Home EV charging and charger guide.
- [Air Condition Guide](https://aircondition.guide/): Air-conditioner replacement and sizing guide.
- [Agewell Guide](https://agewell.guide/): Evidence-led longevity equipment and clinic guide.
- [EU Inc](https://euinc.me/en): Clear, sourced answers about the proposed European company regime.
- [Sharkproofed](https://sharkproofed.com/): A filmed pressure drill that helps founders defend their pitch.

## Field Notes

- [AI Agents That Log Into Apps Without Seeing](https://www.ac0.ai/en/field-notes/open-connector-ai-agents-oauth-saas-self-hosted): Open Connector lets AI agents connect to Gmail, Slack, Stripe and 1,000+ services — without ever touching your actual credentials.
- [DeepSeek's Internal AI Engine Is Now Public](https://www.ac0.ai/en/field-notes/deepseek-harness-open-source-agent-runtime-plugins): DeepSeek just released the exact framework it used to test its own AI models — and anyone can now build on top of it, swap in any AI brain, and extend it freely.
- [The Tool That Strips AI Fingerprints From Text](https://www.ac0.ai/en/field-notes/watermarks-remover-strip-ai-provenance-marks-text): A new open-source tool strips invisible tracking marks that AI companies embed in text — and 6,000 people starred it in days.
- [Brigade: Your AI Team, Running on Your Machine](https://www.ac0.ai/en/field-notes/brigade-self-hosted-ai-agent-crew-shared-memory): Brigade puts a crew of AI agents on your computer — they browse, write emails, attend meetings, and message you like a colleague would.
- [Your Brand Colors, Baked Into Every Diagram](https://www.ac0.ai/en/field-notes/diagram-design-brand-matched-editorial-diagrams-claude): A founder got tired of generic AI diagrams, so she built a tool that reads your website and generates beautiful, on-brand charts in 60 seconds.
- [AI That Can Explain Itself, Months Later](https://www.ac0.ai/en/field-notes/semantica-ai-agent-decision-trail-compliance): Semantica gives AI agents a memory of why they did what they did — a full decision trail any auditor or regulator can follow.
- [A Free AI Analyst That Watches Markets Daily](https://www.ac0.ai/en/field-notes/daily-stock-analysis-free-ai-market-briefs-github): An open-source tool that reads global stock markets every morning and sends you an AI-written summary — no subscription, no server, no ongoing cost.
- [Your iPhone, Controlled by an AI Agent](https://www.ac0.ai/en/field-notes/phone-harness-ai-agent-iphone-control-no-jailbreak): A small open-source tool lets any AI agent tap, scroll, and type on your iPhone — through your Mac, no hacking required.
- [66k Stars: China's Entire Curriculum, Free](https://www.ac0.ai/en/field-notes/china-textbook-free-pdf-curriculum-open-source): A GitHub project collecting every Chinese school and university textbook as free PDFs has gone quietly viral — and it hints at what open education can do.
- [The AI Agent That Rewrites Its Own Brain](https://www.ac0.ai/en/field-notes/prime-agent-self-improving-coding-agent-open-source): Prime Agent is an open-source coding agent that doesn't just follow instructions — it remembers, inspects its own work, and adjusts its thinking mid-task.
- [Any Document, Clean Text, No Cloud Needed](https://www.ac0.ai/en/field-notes/anydoc-firecrawl-document-parsing-open-source): Firecrawl's new open-source tool converts Word, PDF, Excel, PowerPoint and more into clean text — blindingly fast, and your files never leave your machine.
- [The AI Agent That Learns From Real Hackers](https://www.ac0.ai/en/field-notes/reverse-skill-self-evolving-ai-security-methodology): A plug-in that gives AI coding agents tested, real-world playbooks for security analysis — and gets smarter every time someone shares a case.
- [PDFs Don't Have to Be Slow to Process](https://www.ac0.ai/en/field-notes/pdf-inspector-firecrawl-fast-document-classification): A tiny open-source tool that sorts your PDFs in milliseconds — skipping expensive AI processing for the documents that don't need it.
- [YC Open-Sourced the AI System Running Its Company](https://www.ac0.ai/en/field-notes/yc-qm-quartermaster-multi-agent-company-os): Y Combinator just released the internal AI agent system it used to run accounting, legal, and engineering — and to build itself.
- [Headless Browsers for AI Agents: Pick One Per Layer](https://www.ac0.ai/en/field-notes/headless-browsers-ai-agents-comparison): Roundups rank engines, drivers, hosting and agent frameworks in one list, so the advice collapses. Here's the layer map, the licences, and how to choose.
- [Your AI Product Has a Back Door](https://www.ac0.ai/en/field-notes/prompttrace-ai-security-lab-prompt-injection-free): PromptTrace is a free lab where you can watch real AI models get tricked — and finally understand what you're actually shipping to customers.
- [A $10 Board That Speaks Every Protocol](https://www.ac0.ai/en/field-notes/esp32-bit-pirate-hardware-hacking-tool-10-dollars): Open-source firmware turns a cheap ESP32-S3 board into a full hardware analysis tool — no extra software, just a browser and a USB cable.
- [Charts That Handle 100M Points Without Freezing](https://www.ac0.ai/en/field-notes/xy-rust-charting-100m-points-python): A new open-source tool renders massive datasets in your browser almost instantly — the kind of thing that makes dashboards finally feel alive.
- [Stanley for X Review: AI Ghostwriter or Hype?](https://www.ac0.ai/en/field-notes/stanley-for-x-ai-content-review): Stanley now drafts, schedules, and reviews social posts across X, LinkedIn, and Instagram. Here is who it suits, what to verify, and the real tradeoffs.
- [Your Code Checks Now Take Under a Second](https://www.ac0.ai/en/field-notes/oxc-oxlint-fast-javascript-linter-eslint-replacement): A new tool called Oxlint checks large codebases up to 100 times faster than the old standard — and that speed has real business implications.
- [Buzz: Free Slack + GitHub Where AI Is a Teammate](https://www.ac0.ai/en/field-notes/buzz-block-jack-dorsey-slack-github-ai-teammate): Jack Dorsey just shipped a free, self-hosted workspace that replaces Slack and GitHub — and lets AI agents join your team like real colleagues.
- [Your Logins, Their Own Tab: ego-lite](https://www.ac0.ai/en/field-notes/ego-lite-ai-agents-shared-browser-session-isolated): ego-lite gives every AI agent its own browser space inside your real Chrome session — so it uses your logins without ever touching your tabs.
- [The Chat App No Government Can Shut Down](https://www.ac0.ai/en/field-notes/bitchat-bluetooth-mesh-offline-censorship-resistant): BitChat sends messages over Bluetooth, phone to phone, with no internet, no servers, and no way for anyone to pull the plug — including governments.
- [A Meeting Copilot That Stays on Your Machine](https://www.ac0.ai/en/field-notes/natively-local-ai-meeting-copilot-stealth-memory): Natively records, transcribes, and remembers your meetings — entirely on your computer, no subscriptions, no one else's servers.
- [The Biggest Open AI Model Is Now Free to Keep](https://www.ac0.ai/en/field-notes/kimi-k3-largest-open-weight-model-self-hosted): Moonshot AI just released the world's largest open AI model — and unlike GPT or Claude, you can run it yourself, fine-tune it, and use it commercially.
- [Your Code Comments as Living Docs](https://www.ac0.ai/en/field-notes/explicode-code-comments-living-documentation): Explicode turns code comments into polished documentation automatically — so your AI coding agent leaves something readable behind, not just working code.
- [See Your Servers Without the Chaos](https://www.ac0.ai/en/field-notes/docklog-self-hosted-log-viewer-no-stack-required): DockLog gives small teams a live window into their running apps — no expensive tooling, no tech debt, just one tidy dashboard you host yourself.
- [AI Agents That Actually Remember You](https://www.ac0.ai/en/field-notes/tencentdb-agent-memory-long-term-context-local): Tencent open-sourced a memory system that gives AI agents a real brain — no repeated context, no forgotten conversations, and lower costs.
- [A Designer's Rules, Built Into Your AI](https://www.ac0.ai/en/field-notes/emil-kowalski-design-skills-ai-ui-quality): Emil Kowalski encoded his UI design principles into a file that teaches AI coding agents to build interfaces that actually look considered.
- [One Language for Every Business Metric](https://www.ac0.ai/en/field-notes/apache-ossie-vendor-neutral-kpi-standard): Apache Ossie wants every tool in your business to agree on what a 'sale' actually means — and AI agents are why this finally matters.
- [Grok Build Goes Open Source After a Privacy Scare](https://www.ac0.ai/en/field-notes/grok-build-open-source-privacy-xai): xAI released its AI coding agent to the public — but only after researchers caught it quietly uploading user code to Google Cloud without asking.
- [Your AI Website Looks Like Everyone Else's](https://www.ac0.ai/en/field-notes/hallmark-anti-slop-design-skill-ai-ui-quality): Hallmark is a free tool that forces AI coding assistants to think harder about design — so your site doesn't look like a recoloured copy of a thousand others.
- [One Door to 236 AI Models, Zero Dollars](https://www.ac0.ai/en/field-notes/omniroute-ai-gateway-236-providers-free-tokens): OmniRoute sits quietly on your computer and routes AI requests across 236 providers — so when one runs out, another picks up without missing a beat.
- [A Trading Agent You Actually Own](https://www.ac0.ai/en/field-notes/vibe-trading-open-source-personal-ai-trading-agent): Vibe-Trading is an open-source AI agent from HKU that turns plain-English instructions into real trades — for a fraction of what black-box bots charge.
- [A Free Video Editor That Stays on Your Device](https://www.ac0.ai/en/field-notes/opencut-browser-video-editor-capcut-alternative): OpenCut is a free, browser-based video editor with no watermarks, no account, and no footage ever leaving your computer — and it's taking off fast.
- [Test Your Website in Plain English, Free](https://www.ac0.ai/en/field-notes/browserbash-plain-english-browser-testing-free): BrowserBash lets you test any website by typing a normal sentence — no technical setup, no monthly fees, and a free video replay of every run.
- [A 744B AI Model on a Laptop With No GPU](https://www.ac0.ai/en/field-notes/colibri-744b-frontier-ai-model-consumer-laptop-no-gpu): Colibri is a one-person project that runs a frontier-class AI model on ordinary hardware — no server farm, no expensive GPU required.
- [A Guard Dog for Your AI's Shopping Cart](https://www.ac0.ai/en/field-notes/refuse-block-vulnerable-packages-ai-coding-agents): Refuse watches every software package your AI installs and quietly blocks the ones with known security holes — before they touch your system.
- [A Safety Net for Every Package You Install](https://www.ac0.ai/en/field-notes/thinkst-package-proxy-supply-chain-safety-cloudflare): A free, one-click tool that checks every code package for threats before it reaches your computer — built for the era of AI that installs things on its own.
- [Your Job Search, Handled by Claude](https://www.ac0.ai/en/field-notes/ai-job-search-claude-code-cv-cover-letter-ats): A free, open-source tool lets Claude write your tailored CV and cover letter, then check it won't get filtered out before a human ever reads it.
- [An AI That Tries to Break Your App First](https://www.ac0.ai/en/field-notes/strix-ai-pentest-agent-open-source-security): Strix is an open-source AI agent that probes your website for real security holes — the same ones a hired hacker would look for, at near zero cost.
- [Your CV, Rewritten by Two AIs Fighting Over It](https://www.ac0.ai/en/field-notes/ai-cv-drafter-reviewer-job-application-pipeline): An open-source tool uses two Claude agents — one writes your CV, one tears it apart — so only the best version reaches recruiters.
- [Your AI Can Now Edit Word and Excel Files](https://www.ac0.ai/en/field-notes/officecli-ai-agent-office-documents-no-microsoft): OfficeCLI lets AI agents read, edit, and build real Word, Excel, and PowerPoint files — no Microsoft Office required, no setup headaches.
- [Your Meetings, Never Leaving Your Laptop](https://www.ac0.ai/en/field-notes/meetily-local-ai-meeting-assistant-private-otter-alternative): Meetily transcribes and summarises every meeting in real time — no subscription, no cloud, no one else reading your conversations.
- [T3MP3ST: AI That Tries to Break Your AI](https://www.ac0.ai/en/field-notes/t3mp3st-autonomous-red-teaming-multi-agent-ai-security): A self-hosted platform that sends swarms of AI agents to attack your AI product — so you find the weak spots before your users or competitors do.
- [A Trick That Cuts Claude API Bills by 60%](https://www.ac0.ai/en/field-notes/pxpipe-claude-api-cost-reduction-image-tokens): A small open-source tool converts Claude's text inputs into tiny images — and because of how Claude charges for images, that can slash your bill by more than half.
- [Any Website Can Now Have an AI Copilot](https://www.ac0.ai/en/field-notes/page-agent-ai-copilot-any-website-script-tag): Alibaba released a free tool that lets users control any website with plain English — no extensions, no rewrites, just one line of code.
- [Your Codebase, Explained to AI Agents](https://www.ac0.ai/en/field-notes/openwiki-auto-docs-ai-coding-agents-langchain): OpenWiki auto-writes the internal documentation that AI coding agents need to navigate your project — and keeps it fresh every day.
- [One Coordinator, Many AI Brains Working Together](https://www.ac0.ai/en/field-notes/openfugu-open-source-multi-model-ai-orchestrator): OpenFugu lets a tiny routing model decide which frontier AI — GPT, Claude, or Gemini — handles each part of your task, and it's free to run yourself.
- [When AI Agents Get Their Memory Poisoned](https://www.ac0.ai/en/field-notes/owasp-agent-memory-guard-ai-memory-poisoning-defense): A free, open-source tool now acts as a bodyguard between your AI agent and its memory — quietly blocking attacks before they cause real damage.
- [Ask AI to fix a bug, right inside GitHub](https://www.ac0.ai/en/field-notes/opentag-ai-agent-mentions-github-slack-in-thread): OpenTag lets you @mention an AI agent in GitHub or Slack and it does the work there — no copy-pasting, no switching tabs, no extra logins.
- [AI That Answers Faster, Without Getting Dumber](https://www.ac0.ai/en/field-notes/deepspec-speculative-decoding-80-percent-inference-speedup): DeepSeek open-sourced the exact system that makes their AI respond 80% faster — and now any team running their own model can use it too.
- [Four AI analysts, one investment thesis](https://www.ac0.ai/en/field-notes/ai-berkshire-parallel-agents-value-investing-research): AI Berkshire sends four independent Claude agents to research the same company at once — then a fifth one reconciles what they found.
- [Run Five AI Coders at Once, Compare Results](https://www.ac0.ai/en/field-notes/orca-parallel-coding-agents-desktop-ide): Orca is a free desktop app that runs multiple AI coding agents side by side — so you can pick the best result instead of hoping for one.
- [The AI Code Bouncer That Ships Clean PRs](https://www.ac0.ai/en/field-notes/no-mistakes-ai-code-quality-gate-git-proxy): No-mistakes sits between your AI coding assistant and GitHub, quietly refusing to ship anything until it passes a full quality check.
- [The Google Tool That Outlived Its Creator's Job](https://www.ac0.ai/en/field-notes/google-workspace-cli-fired-engineer-tool-still-works): A Google engineer built the fastest way to connect AI agents to all of Google Workspace — then got fired. The tool still works, and it's worth knowing about.
- [40 Pages of PDF, Read in One Breath](https://www.ac0.ai/en/field-notes/unlimited-ocr-baidu-pdf-document-intelligence): Baidu just open-sourced an OCR model that reads entire documents in one pass — no page-by-page tricks, MIT licensed, and it outperforms giants like Gemini 2.5 Pro.
- [Edit Video With an AI Co-Editor on Your Mac](https://www.ac0.ai/en/field-notes/palmier-pro-ai-video-editor-mac-mcp-timeline): Palmier Pro is a free Mac video editor where an AI agent and you edit the same timeline at the same time — no login, no subscription.
- [The Web as a Picture Book for AI](https://www.ac0.ai/en/field-notes/pixelrag-screenshot-web-retrieval-vision-ai): PixelRAG lets AI agents read websites as screenshots instead of messy text — and it's faster, cheaper, and more accurate than the old way.
- [Your Own Heroku, for $6 a Month](https://www.ac0.ai/en/field-notes/coolify-v4-self-hosted-heroku-alternative-vps): Coolify v4 lets you run your whole web stack on a cheap server you control — apps, databases, and AI tools included — for a fraction of managed-platform prices.
- [Your AI Coder Now Knows Your Whole Project](https://www.ac0.ai/en/field-notes/codebase-memory-mcp-knowledge-graph-ai-agents): A tool that gives AI coding assistants a map of your entire project — so they stop getting lost and start getting useful, fast.
- [OpenMontage: Your Prompt Becomes a Finished Video](https://www.ac0.ai/en/field-notes/openmontage-agentic-video-production-plain-language): OpenMontage is an open-source system that takes a plain-language prompt and handles the research, script, footage, editing, and music — delivering a finished video.
- [One Dev, Many Agents Working at Once](https://www.ac0.ai/en/field-notes/emdash-parallel-ai-coding-agents-desktop): Emdash lets a single developer run dozens of AI coding agents at the same time — each on a separate task, never stepping on each other's work.
- [The Hidden Instructions Behind Every AI Tool](https://www.ac0.ai/en/field-notes/cl4r1t4s-hidden-system-prompts-ai-tools-leaked): A researcher published the full internal instructions shaping how Claude, ChatGPT, and others behave — all 120,000 characters of them.
- [Teaching Your AI to Do Less, on Purpose](https://www.ac0.ai/en/field-notes/ponytail-yagni-ruleset-ai-coding-agents): Ponytail gives AI coding assistants a simple instinct: before writing anything, check if something already does the job. Fewer lines, faster results.
- [Pi: The Tiny Agent That Does More With Less](https://www.ac0.ai/en/field-notes/pi-minimal-coding-agent-armin-ronacher): Pi is a new open-source coding agent from Flask's creator — 54,000 fans in days — proving that smaller, simpler AI can outthink the bloated alternatives.
- [Apple's Free On-Device AI Just Got a Lot More Real](https://www.ac0.ai/en/field-notes/apple-fm-serve-on-device-ai-free-indie-developers): Apple quietly shipped a way to run AI privately on any Mac — no cloud bills, no data leaving the device. Here's what that means for small builders.
- [The AI Coder That Remembers Everything](https://www.ac0.ai/en/field-notes/mimo-code-persistent-memory-coding-agent): Xiaomi just released a free AI coding agent that keeps its memory between sessions — and outperforms Claude Code on standard benchmarks.
- [One AI Coding Tool to Rule Them All](https://www.ac0.ai/en/field-notes/opencode-open-source-coding-agent-model-agnostic): OpenCode just became the most-used open-source AI coding agent on the planet — and it works with any AI model you already pay for.
- [Apple lets iPhones run AI with no internet, no bill](https://www.ac0.ai/en/field-notes/apple-core-ai-on-device-open-source-models-wwdc2026): Apple just made it possible to run powerful AI models entirely on your phone — offline, free, and without sending data to anyone's server.
- [A Tiny AI That Can See — and Runs Anywhere](https://www.ac0.ai/en/field-notes/zaya1-vl-tiny-vision-ai-open-weight-local): Zyphra's new model reads images, text in photos, and visual documents — at a fraction of the usual cost, free to use and host yourself.
- [Your AI Search Engine, But 8× Smaller](https://www.ac0.ai/en/field-notes/turbovec-vector-index-compression-local-rag): A new open-source tool shrinks the memory your AI search needs by 87% — without losing quality. Big news for anyone running AI on their own servers.
- [Read the Internet for Free, No API Keys Needed](https://www.ac0.ai/en/field-notes/agent-reach-free-internet-access-ai-agents): Agent-Reach lets your AI assistant browse Twitter, Reddit, YouTube and more without paying platform fees — a small tool with a surprisingly large surface area.
- [Alibaba's Code Inspector, Now Open to All](https://www.ac0.ai/en/field-notes/alibaba-open-code-review-ai-defect-detection): Alibaba ran this AI code review tool internally for two years across tens of thousands of developers — and just made it free for everyone.
- [A Voice AI That Actually Sounds Human](https://www.ac0.ai/en/field-notes/misotts-emotive-open-weight-voice-ai): MisoTTS is a free, open voice model that reads emotion from audio context — giving AI-generated speech a warmth that most tools can't match.
- [A Frontier AI Model That Anyone Can Host](https://www.ac0.ai/en/field-notes/minimax-m3-open-weight-frontier-model-affordable): MiniMax M3 matches the best closed AI models on coding tasks — and costs twelve times less. Soon, you'll be able to run it yourself.
- [A Real Domain, Free, No Card Required](https://www.ac0.ai/en/field-notes/freedomain-free-domain-cloudflare-zero-cost-stack): FreeDomain lets anyone claim a proper web address at zero cost — and it already has half a million registered. No catch, no card.
- [Cut Your AI Bill Without Touching Anything](https://www.ac0.ai/en/field-notes/headroom-token-compression-middleware-ai-cost-reduction): Headroom quietly compresses what your AI reads before it reads it — slashing API costs by up to 95% without changing how anything works.
- [Your Own AI Workspace, On Your Own Machine](https://www.ac0.ai/en/field-notes/odysseus-self-hosted-ai-workspace-local-first): Odysseus is a free, open-source workspace that runs AI assistants, email triage, and research agents entirely on your own computer — no subscriptions, no data sharing.
- [A Voice for Your AI That Costs Nothing](https://www.ac0.ai/en/field-notes/moss-tts-nano-free-local-voice-synthesis-cpu): A tiny open-source model that gives your AI a human-sounding voice — no expensive cloud subscription, no special hardware, just your laptop.
- [A Voice for Your App — No Internet Required](https://www.ac0.ai/en/field-notes/supertonic-free-on-device-voice-synthesis-31-languages): Supertonic 3 turns written text into studio-quality speech on your own computer — no subscriptions, no cloud, 31 languages out of the box.
- [AI Agents Work Best When They're Not Fully](https://www.ac0.ai/en/field-notes/12-factor-agents-principles-production-ai): A widely-shared principles guide reveals that the most reliable AI products are mostly structured code, with AI sprinkled in at precisely the right moments.
- [Bumblebee Scans Your Tools for Hidden Threats](https://www.ac0.ai/en/field-notes/bumblebee-supply-chain-scanner-mcp-packages): Perplexity open-sourced a free scanner that checks your team's computers for compromised software packages and AI tool configs — without touching anything.
- [Webwright Review: Reusable Browser Automation Scripts](https://www.ac0.ai/en/field-notes/webwright-browser-agent-reusable-scripts-microsoft): Webwright is Microsoft's open-source browser agent for turning long web tasks into inspectable, rerunnable Python and Playwright scripts.
- [CodeGraph: Claude Uses 71% Less Brain Power](https://www.ac0.ai/en/field-notes/codegraph-claude-code-token-usage-reduction): A free tool that pre-reads your entire codebase so AI coding agents stop wasting time searching — and cost you far less per session.
- [Websites That Talk to AI Agents Directly](https://www.ac0.ai/en/field-notes/webmcp-websites-talk-to-ai-agents-directly): Google's new WebMCP standard lets AI agents interact with websites cleanly — no guessing, no fumbling — and Booking.com, Shopify, and Expedia are already on board.
- [See Inside Any Codebase Without Reading It](https://www.ac0.ai/en/field-notes/understand-anything-codebase-knowledge-graph): A free tool that reads your entire project and draws a living map of how everything connects — built for teams who inherited someone else's mess.
- [Turn Any Book Into an Audiobook, Free](https://www.ac0.ai/en/field-notes/abogen-local-audiobook-generator-epub-pdf): abogen converts EPUBs, PDFs, and text files into chaptered audiobooks with synced captions — offline, free, and surprisingly polished.
- [~1 Billion Free AI Tokens a Month, No Card](https://www.ac0.ai/en/field-notes/freellmapi-free-llm-proxy-self-hosted): A tiny self-hosted tool stitches together 14 free AI services into one endpoint — giving small teams serious AI capacity without a billing account.
- [Autocomplete that never leaves your Mac](https://www.ac0.ai/en/field-notes/cotypist-local-ai-autocomplete-mac): Cotypist finishes your sentences inline in almost any Mac app — and the whole AI runs on your machine, so your words never leave it. Free while in beta.
- [The AI Research Assistant That Checks Its Own Work](https://www.ac0.ai/en/field-notes/academic-research-skills-claude-citation-verification): A free tool that turns Claude into a full research team — and won't let it invent fake sources, which is the part that actually matters.
- [OpenWA Review: Self-Hosted WhatsApp API Gateway](https://www.ac0.ai/en/field-notes/openwa-self-hosted-whatsapp-api-gateway): OpenWA is a free, open-source WhatsApp API gateway with REST endpoints, webhooks, multi-session support, a dashboard and Docker deployment.
- [Google's Tool That Sniffs Out Unsafe AI Models](https://www.ac0.ai/en/field-notes/google-ams-activation-model-scanner-safety-check): Google open-sourced a scanner that checks if an AI model has had its safety training removed — in under a minute, no guesswork needed.
- [One conductor, forty AI musicians](https://www.ac0.ai/en/field-notes/compozy-ai-agent-orchestration-pipeline): Compozy is a free, local tool that coordinates dozens of AI coding agents through every stage of building software — so nothing gets lost, nothing costs more than it should, and you stay in control.
- [X's feed algorithm is now open for anyone to inspect](https://www.ac0.ai/en/field-notes/x-algorithm-open-source-recommendation-feed): The code that decides what millions of people see on X every day is now publicly available — and small teams can actually use it.
- [Your WiFi Is Already Watching the Room](https://www.ac0.ai/en/field-notes/ruview-wifi-presence-breathing-pose-detection-esp32): A $9 sensor and your existing WiFi router can detect people, measure breathing, and estimate body posture — through walls, in the dark, no camera needed.
- [Your AI assistant finally remembers you](https://www.ac0.ai/en/field-notes/agentmemory-persistent-memory-ai-coding-agents): A small open-source tool gives your AI coding assistant a long-term memory — so it stops forgetting everything between sessions.
- [The AI that actually knows your week](https://www.ac0.ai/en/field-notes/openhuman-local-first-ai-persistent-memory-all-tools): OpenHuman quietly reads all your tools every 20 minutes and builds a private memory of your work — so it never starts from scratch.
- [Your codebase, searchable by AI, sent to no one](https://www.ac0.ai/en/field-notes/sourcebot-private-codebase-search-ai-agents): Sourcebot lets you run a private, searchable brain over all your code repositories — so your AI tools stop guessing and start knowing.
- [A backend built for AI, not for you](https://www.ac0.ai/en/field-notes/insforge-backend-platform-ai-coding-agents): InsForge is a database and infrastructure platform designed to be operated by AI agents, not by humans clicking through dashboards.
- [Write the brief first, let the AI do the rest](https://www.ac0.ai/en/field-notes/spec-kit-structured-ai-coding-brief): A new open-source tool flips the AI coding workflow: instead of prompting and hoping, you write a structured brief first — and the AI executes against it.
- [The Browser That Looks Human (Because It Is)](https://www.ac0.ai/en/field-notes/cloakbrowser-stealth-chromium-bot-detection): CloakBrowser is a free, open-source browser built for AI agents that need to browse the web without getting blocked — and it costs nothing where competitors charge hundreds a month.
- [A 284-Billion-Parameter AI That Lives on Your MacBook](https://www.ac0.ai/en/field-notes/ds4-deepseek-local-inference-macbook-antirez): The creator of Redis just released a tiny engine that runs one of the world's most capable AI models entirely on a high-end MacBook — no cloud, no subscription, no data leaving your desk.
- [It Watches You Work, Then Writes the Instructions Itself](https://www.ac0.ai/en/field-notes/agenthandover-screen-observation-skill-generation): A small Mac app sits quietly in your menu bar, watches you repeat the same task three times, and then writes a detailed playbook your AI agent can follow — in your voice, with your logic baked in.
- [A coding agent that works all night for almost nothing](https://www.ac0.ai/en/field-notes/deepseek-tui-terminal-agent-cheap-context-window): An open-source AI agent that can read and edit an entire codebase in one sitting — at a fraction of the cost of the big names.
- [Design without asking permission](https://www.ac0.ai/en/field-notes/open-design-local-first-claude-design-alternative): A free, open-source tool just appeared that does what Anthropic's shiny new design product does — except you own it, host it yourself, and it works with whichever AI you already use.
- [When One AI Agent Isn't Enough](https://www.ac0.ai/en/field-notes/ruflo-multi-agent-swarm-orchestration-claude): Ruflo turns Claude into a self-organizing team of AI specialists that split the work between them, and it's free to run yourself.
- [OpenClaw: one AI assistant in every chat app you use](https://www.ac0.ai/en/field-notes/openclaw-self-hosted-ai-assistant-messaging-channels): Self-hosted AI gateway that puts the same assistant into WhatsApp, Telegram, Slack, iMessage and more. Open source, MIT-licensed, runs on your own machine.
- [The AI that reads your code like a book, not a paper pile](https://www.ac0.ai/en/field-notes/cocoindex-code-semantic-search-token-reduction): A free, local tool that helps AI coding assistants find exactly what they need in your codebase — without wasting time (or money) reading everything.
- [Avec: 'Tinder for email,' minus the dating part](https://www.ac0.ai/en/field-notes/avec-mail-tinder-swipe-inbox-ios): Free iPhone email app that lets you swipe through Gmail one message at a time. Voice replies, smart filtering, learns what matters to you. iOS only, US and Canada.
- [The course downloader that builds you a study room](https://www.ac0.ai/en/field-notes/omniget-offline-course-study-environment): OmniGet downloads your paid courses from Udemy, Hotmart and a dozen other platforms — then wraps them in a real study environment with notes, flashcards, and focus tools.
- [One call, many agents working in parallel](https://www.ac0.ai/en/field-notes/sandcastle-parallel-ai-coding-agents-orchestration): Sandcastle lets you spin up multiple AI coding agents at once — each working in its own isolated space — and then quietly merges everything back together.
- [Your task list, running itself](https://www.ac0.ai/en/field-notes/openai-symphony-autonomous-coding-agent-factory): OpenAI open-sourced a tool that turns a project management board into a team of coding agents — each ticket gets its own worker that runs until the job is done.
- [When the AI Writes Its Own Code](https://www.ac0.ai/en/field-notes/warp-open-source-agent-writes-code): Warp just open-sourced a developer tool where AI agents do the actual coding — and humans just check the work.
- [The Skills Library Everyone Is Copying Right Now](https://www.ac0.ai/en/field-notes/mattpocock-claude-skills-library-open-source): A developer published his personal AI instruction set as a free, installable collection — and 31,000 people starred it in days.
- [The AI that breaks into your systems before attackers do](https://www.ac0.ai/en/field-notes/pentagi-autonomous-penetration-testing-ai-agent): PentAGI is an open-source AI agent that runs full security tests on your systems autonomously — no specialist required to set it in motion.
- [An AI sidekick that watches your Mac screen](https://www.ac0.ai/en/field-notes/clicky-mac-screen-aware-ai-assistant): Clicky is a Mac app that sits next to your cursor and answers questions about whatever's on screen. Voice in, context-aware answers out. A second mode lets you spin up an agent to go do tasks in the background.
- [Someone is finally stress-testing AI before it goes live](https://www.ac0.ai/en/field-notes/promptfoo-ai-red-teaming-security-testing): Promptfoo automatically attacks your AI to find its weaknesses — and OpenAI just paid $86M for it, then kept it free.
- [Your AI team clocks in while you watch](https://www.ac0.ai/en/field-notes/wanman-local-agent-matrix-observer-mode): Wanman runs a coordinated crew of AI agents on your own machine — each with a role, each talking to the others — while you sit back and watch it happen.
- [Hugging Face built a robot intern that trains AI models](https://www.ac0.ai/en/field-notes/huggingface-ml-intern-autonomous-research-agent): An open-source AI agent that reads academic papers, finds datasets, and trains machine learning models — without anyone holding its hand.
- [When Your Documents Are More Than Text](https://www.ac0.ai/en/field-notes/rag-anything-multimodal-document-intelligence): A new open-source tool reads PDFs the way humans do — charts, tables, diagrams and all — instead of pretending they're just paragraphs.
- [Teaching AI to Work Like a Senior Engineer](https://www.ac0.ai/en/field-notes/agent-skills-senior-engineer-discipline-ai): A Google engineer published 20 ready-made instruction sets that stop AI coding tools from cutting corners — and they're free to use today.
- [754 Security Skills You Can Give to Your AI Assistant](https://www.ac0.ai/en/field-notes/anthropic-cybersecurity-skills-ai-agent-library): A free, open library that teaches AI assistants to think like a cybersecurity expert — covering 26 areas of digital security across the frameworks big companies actually use.
- [A Bloomberg Terminal for the rest of us](https://www.ac0.ai/en/field-notes/fincept-terminal-free-bloomberg-alternative): A free, open-source tool that puts professional-grade financial research on your desktop — no $27,000 subscription required.
- [Teaching AI to Have Taste](https://www.ac0.ai/en/field-notes/taste-skill-ai-design-rules-no-slop): A tiny file you drop into any AI-built project that stops the agent from producing the same generic, purple-gradient website it made for everyone else.
- [Dictation that reads your screen](https://www.ac0.ai/en/field-notes/aquavoice-ai-dictation-reads-your-screen): Aqua Voice turns speech into text across any app — but the twist is it reads what's on your screen and matches your tone. Free tier plus a bonus with code DP-FH8V.
- [AI can now edit video by writing HTML](https://www.ac0.ai/en/field-notes/hyperframes-ai-video-html-open-source): A new open-source tool turns plain web code into rendered video — which means AI agents can finally produce video content without touching a timeline.
- [What if your AI developer never forgot a step?](https://www.ac0.ai/en/field-notes/archon-deterministic-ai-coding-workflows): Archon gives AI coding tools a fixed process to follow — so every task runs the same way, every time, no matter the model's mood.
- [The Agent That Teaches Itself](https://www.ac0.ai/en/field-notes/genericagent-self-evolving-skill-tree-agent): A tiny AI agent that gets smarter and cheaper every time it completes a task — and reportedly built its own codebase without a human ever touching the keyboard.
- [One File That Teaches Claude Some Manners](https://www.ac0.ai/en/field-notes/claude-md-karpathy-disciplined-coding-habits): A tiny config file inspired by one of AI's sharpest minds turns Claude Code from a confident intern into something closer to a careful engineer.
- [Google's AI Knows What Your Files Really Are](https://www.ac0.ai/en/field-notes/magika-google-ai-file-type-detection): Google open-sourced the AI it uses to scan billions of Gmail and Drive uploads — and it identifies file types with 99% accuracy in the blink of an eye.
- [A text prompt walks in. A finished video walks out.](https://www.ac0.ai/en/field-notes/kupkaprod-local-ai-movie-studio-text-to-video): An open-source project that works like a tiny film studio on your computer — you describe a video, it writes the script, plans the shots, and produces the whole thing while you sleep.
- [A model that reads markets like ChatGPT reads text](https://www.ac0.ai/en/field-notes/kronos-financial-market-foundation-model-candlestick): Kronos is an open-source AI trained on 12 billion candlestick records from 45 global exchanges — and it forecasts prices better than anything else in its class.
- [What if your docs actually worked?](https://www.ac0.ai/en/field-notes/manicule-ai-native-technical-docs-agency): A small YC-backed agency figured out how to fix broken developer docs in weeks, not months — by letting AI do the tedious parts and humans do the thinking.
- [Teach Your AI to Speak Less, Think More](https://www.ac0.ai/en/field-notes/caveman-claude-token-compression-skill): A tiny add-on makes Claude respond like a caveman — and somehow that cuts costs by up to 87% while keeping every useful answer intact.
- [A Tiny Download Manager That Respects Your Machine](https://www.ac0.ai/en/field-notes/motrix-next-lightweight-download-manager): The best download manager around went quiet in 2023 — someone just rebuilt it from scratch, and it's smaller, faster, and free.
- [Your AI Finally Remembers You](https://www.ac0.ai/en/field-notes/mempalace-persistent-ai-memory-local): A free tool that gives AI assistants a real memory — so they stop forgetting everything the moment you close the chat.
- [Graphify: a free knowledge graph for any codebase](https://www.ac0.ai/en/field-notes/graphify-codebase-knowledge-graph-claude): Free, open-source Claude Code skill that turns any codebase into a knowledge graph. Ask questions in plain English, runs 71x cheaper, works with a local mode.
- [A real email address for your AI agent](https://www.ac0.ai/en/field-notes/molted-email-ai-agent-mailbox-governance): Molted gives AI agents their own managed mailbox — with built-in safety rails so they can't spam your contacts or leak sensitive data.
- [One person. One AI. 740 job offers evaluated.](https://www.ac0.ai/en/field-notes/career-ops-claude-job-search-pipeline): Someone built an AI-powered job search system for themselves, used it to evaluate 740 offers and write 354 tailored CVs — then got hired as Head of Applied AI.
- [A Design File That Teaches AI What Your Brand Looks Like](https://www.ac0.ai/en/field-notes/design-md-ai-ui-style-matching): A plain text file called DESIGN.md can now tell an AI agent exactly how a website should look — colors, fonts, spacing — so it builds interfaces that actually match your style.
- [Drop a receipt. Get tidy accounts.](https://www.ac0.ai/en/field-notes/taxhacker-ai-receipt-accounting-self-hosted): TaxHacker is a free, self-hosted app that reads any receipt or invoice — in any language — and turns it into clean accounting data, automatically.
- [A powerful AI that fits in your pocket — literally](https://www.ac0.ai/en/field-notes/gemma-4-open-weight-local-ai-commercial-free): Google just released a family of AI models you can run on your own devices, own completely, and use commercially — no subscriptions, no restrictions.
- [Beautiful product demos, free forever](https://www.ac0.ai/en/field-notes/openscreen-free-screen-studio-alternative): OpenScreen does what expensive demo software does — zoom effects, clean backgrounds, polished exports — at zero cost and with no watermark.
- [One tool turned a solo coder into an overnight dev team](https://www.ac0.ai/en/field-notes/oh-my-codex-multi-agent-orchestration-layer): A small open-source tool called OMX quietly turned a single AI coding assistant into a coordinated team of agents — and someone used it to do a week's worth of work in one night.
- [The invisible ruler for text on screens](https://www.ac0.ai/en/field-notes/pretext-zero-reflow-text-measurement): A tiny open-source tool just went viral for solving something deceptively boring: measuring how tall a block of text is, without making the browser stutter.
- [An hour of voice, handled in one breath](https://www.ac0.ai/en/field-notes/vibevoice-microsoft-open-source-voice-ai): Microsoft quietly released a voice AI toolkit that can transcribe a full hour of audio — speakers, timestamps, and all — without breaking it into pieces.
- [Plan a trip together — without handing your data to anyone](https://www.ac0.ai/en/field-notes/trek-self-hosted-collaborative-trip-planner): TREK is a free, self-hosted trip planner your whole team can use in real time — maps, budgets, weather, packing lists — and it lives on your own server.
- [When AI coding sessions grow up and become team processes](https://www.ac0.ai/en/field-notes/openwork-team-ui-agentic-coding-workflows): OpenWork turns solo AI coding sessions into something a whole team can audit, repeat, and trust, with logs and shared workflows.
- [One Plugin, Thirty-Two AI Teammates](https://www.ac0.ai/en/field-notes/oh-my-claudecode-multi-agent-dev-team-plugin): A new plugin for Claude Code gives you an instant team of 32 specialized AI agents — architect, designer, librarian, and more — without writing a single line of setup.
- [A Query Language That Speaks Human, Not Code](https://www.ac0.ai/en/field-notes/tinyfish-agentql-web-agent-infrastructure): TinyFish built infrastructure for AI agents to interact with the live web at scale — and AgentQL lets you point at any element on any page using plain English instead of brittle CSS selectors.
- [One command. Eight sources. A real picture of right now.](https://www.ac0.ai/en/field-notes/last30days-skill-cross-source-research-agent): A single command sends an AI agent across Reddit, YouTube, X, and five other sources — and brings back a grounded, cited summary of what people are actually saying in the last 30 days.
- [The Spanish Tech Gap: Why Expat Founders Struggle with AI](https://www.ac0.ai/en/field-notes/spanish-tech-gap-expat-founders-ai): Running a business in Spain but working in English? There's a hidden friction when it comes to high-end AI and automation. Here's why it happens and how to bridge it.
- [Reading PDFs Without Sending Them Anywhere](https://www.ac0.ai/en/field-notes/opendataloader-pdf-on-premise-parser): A new PDF parser runs entirely on your own machine, handles messy real-world documents surprisingly well, and doesn't need an internet connection or an API account.
- [Your Calendar, Contacts, and Messages — Inside Claude](https://www.ac0.ai/en/field-notes/imcp-claude-personal-data-macos-menubar): A small Mac app quietly bridges the gap between Claude and your actual life — calendar, messages, contacts, reminders, and location included.
- [The AI That Actually Does the Work](https://www.ac0.ai/en/field-notes/deerflow-superagent-executes-tasks): DeerFlow is an open-source AI agent that does not just answer questions, it plans the work and finishes whole projects on its own.
- [A full trading firm, made of AI agents](https://www.ac0.ai/en/field-notes/tradingagents-multi-agent-trading-firm-simulation): Researchers built an open-source system where a whole cast of AI specialists — analysts, a trader, a risk manager — debate each other and arrive at a single investment decision.
- [An AI That Works When the Internet Doesn't](https://www.ac0.ai/en/field-notes/project-nomad-offline-ai-sovereign-stack): Project N.O.M.A.D. bundles an AI assistant, offline Wikipedia, maps, and medical references into a self-contained computer that runs anywhere — no Wi-Fi, no cloud, no tracking.
- [Your documents, your server, your rules](https://www.ac0.ai/en/field-notes/openrag-sovereign-document-intelligence-self-hosted): OpenRAG lets you build a private search brain for all your business documents — PDFs, audio recordings, spreadsheets — without sending a single file to anyone else's cloud.
- [How to see what you pasted in Claude Code](https://www.ac0.ai/en/field-notes/claude-code-shift-paste-hidden-input): Claude Code collapses anything longer than a few lines when you paste, hiding most of it. One keystroke reveals the full input again.
- [A Dashboard for Your AI Assistant's Energy Levels](https://www.ac0.ai/en/field-notes/claude-hud-context-usage-visibility): A tiny open-source tool that shows you exactly how much of Claude's attention budget you've used — before you run out mid-task.
- [A classroom full of AI teachers, free for everyone](https://www.ac0.ai/en/field-notes/openmatic-tsinghua-ai-classroom-multi-agent): Researchers at one of China's top universities just released a tool that turns any document or topic into a live, interactive AI classroom — complete with teachers, curious classmates, and quizzes.
- [Crucix: a free, self-hosted OSINT intelligence terminal](https://www.ac0.ai/en/field-notes/crucix-osint-intelligence-terminal-self-hosted): Crucix is a free, open-source OSINT intelligence terminal you self-host. Monitors 27 live feeds (fires, flights, markets, conflicts) and pings you on Telegram.
- [A browser built for robots, not humans](https://www.ac0.ai/en/field-notes/lightpanda-headless-browser-ai-agents): Lightpanda runs 11x faster than Puppeteer and uses 9x less RAM. An open-source headless browser purpose-built for AI agents and web scraping.
- [One AI, Eight Hats](https://www.ac0.ai/en/field-notes/gstack-claude-code-role-based-ai-dev-team): Garry Tan's personal Claude setup gives one AI 8 specialist roles - architect, reviewer, security auditor and more. Open-source, free to copy.
- [The Filing Cabinet Your AI Agent Actually Needs](https://www.ac0.ai/en/field-notes/openviking-context-database-ai-agents): ByteDance just open-sourced a smarter way for AI agents to store and retrieve what they know — and it could quietly cut costs while making agents a lot more reliable.
- [The AI Panel That Argues Before It Answers](https://www.ac0.ai/en/field-notes/bettafish-multi-agent-brand-intelligence): A 20-year-old student built a self-hosted brand monitoring tool where AI agents argue with each other before writing your report — and the internet noticed.
- [Teaching AI Agents to Use Desktop Software](https://www.ac0.ai/en/field-notes/cli-anything-gui-apps-agent-native): A new tool lets AI agents operate desktop software like GIMP or Blender the same way a human would — but faster, quietly, and without anyone touching a mouse.
- [The AI Agent That Remembers What It Learned](https://www.ac0.ai/en/field-notes/hermes-agent-persistent-memory-self-hosted): Hermes Agent remembers past conversations, learns from mistakes, and connects to Slack, Discord and Telegram. Free, self-hosted, built by Nous Research.
- [A Full AI Team, Ready to Hire](https://www.ac0.ai/en/field-notes/agency-agents-ai-team-personas): 100+ ready-made AI agent personas in one repo - frontend devs, brand managers, growth leads. Copy-paste into Claude, ChatGPT or any AI tool.
- [A Simulated World Full of Thinking Agents](https://www.ac0.ai/en/field-notes/mirofish-swarm-intelligence-prediction-engine): MiroFish builds a tiny parallel world of thousands of AI characters to predict what happens next — in markets, public opinion, or even unfinished stories.
- [An AI that runs 100 experiments while you sleep](https://www.ac0.ai/en/field-notes/autoresearch-ai-agent-overnight-experiments): Andrej Karpathy just released a tiny tool that lets an AI agent run experiments on its own, all night, and hand you the results by morning.
- [AI agents that can't leak your passwords — even if tricked](https://www.ac0.ai/en/field-notes/ironclaw-ai-agent-credential-safety): IronClaw is an open-source runtime that lets AI agents do real work without ever seeing — or accidentally exposing — your API keys and secrets.
- [What if your whole company was run by AI agents?](https://www.ac0.ai/en/field-notes/paperclip-ai-company-orchestration-layer): Paperclip lets you build a fully staffed AI organisation — with a real org chart, budgets, and accountability — that actually runs itself.
- [The AI That Tries to Break Your App Before Anyone Else Does](https://www.ac0.ai/en/field-notes/shannon-ai-pentester-continuous-security): Shannon is an open-source AI that actually attacks your own web app to find real security holes — not just a list of warnings, but proof that something is broken.
- [Your Brand on Reddit, Without the Hours](https://www.ac0.ai/en/field-notes/reddit-brand-monitoring-n8n-supabase): A free, set-it-and-forget-it system that watches Reddit for your brand name and pings you when someone mentions it, so you don't have to.
- [A news dashboard that thinks — and never phones home](https://www.ac0.ai/en/field-notes/worldmonitor-local-ai-geopolitical-dashboard): WorldMonitor pulls together global news, markets, and geopolitical signals into one screen — with AI analysis that runs entirely on your own machine.
- [The invisible wall that keeps AI agents from breaking things](https://www.ac0.ai/en/field-notes/opensandbox-safe-ai-agent-execution): Alibaba just open-sourced the safety layer that lets AI agents actually do things — without putting your real systems at risk.
- [Your WiFi Router Can Already See You](https://www.ac0.ai/en/field-notes/wifi-densepose-through-wall-human-sensing): A new open-source project turns an ordinary WiFi router into a sensor that can detect where people are, how they're breathing, and whether someone has fallen — no camera required.
- [Your codebase, mapped — without leaving your browser](https://www.ac0.ai/en/field-notes/gitnexus-codebase-knowledge-graph-browser): GitNexus turns any code repository into a visual map your AI assistant can actually read — privately, for free, in your browser.
- [Your Spreadsheet Can Now See the Future](https://www.ac0.ai/en/field-notes/timesfm-forecasting-google-sheets): Google quietly embedded a powerful AI forecasting model inside Google Sheets — and you don't need to know anything technical to use it.
- [Teaching your AI coder to actually think before it types](https://www.ac0.ai/en/field-notes/superpowers-skills-framework-coding-agents): A free tool that gives your AI coding assistant a real methodology — so it stops winging it and starts working like a disciplined engineer.
- [The Web Scraper That Fixes Itself](https://www.ac0.ai/en/field-notes/scrapling-adaptive-web-scraping): Scrapling watches websites change and quietly updates itself — so your data pipelines don't break every time a competitor redesigns their homepage.
- [What if your AI actually read the document, like a human?](https://www.ac0.ai/en/field-notes/pageindex-reasoning-rag-no-vector-db): A new open-source tool lets AI navigate long documents the way an expert would — by understanding structure, not just scanning for similar words.
- [The Instructions Behind the Curtain](https://www.ac0.ai/en/field-notes/leaked-system-prompts-ai-tools): Someone published the secret instructions powering Cursor, Claude, Lovable, and 25 other AI tools — and it's the most revealing thing published about AI this year.
- [Windmill turns small automations into proper tools](https://www.ac0.ai/en/field-notes/windmill-scripts-to-workflows): An open-source platform that takes your team's little scripts and automations and gives them a proper home — with scheduling, logs, and a real interface.
- [n8n: connect everything, pay nothing](https://www.ac0.ai/en/field-notes/n8n-webhook-to-anywhere): n8n lets you automate anything between your apps — Slack, email, CRM, spreadsheets. It's free, it's visual, and you own the whole thing.
- [Claude Code: when AI actually builds things for you](https://www.ac0.ai/en/field-notes/claude-code-cli-ship-faster): Anthropic's tool lets Claude read your entire project, make changes, and even publish updates — while you describe what you want in plain English.
- [Scheduled tasks that run themselves — inside your database](https://www.ac0.ai/en/field-notes/supabase-edge-functions-cron-jobs): Supabase can run tasks on a schedule — daily reports, data cleanup, reminders — without any extra tools or monthly fees.
- [Cloudflare gives you a global server network — for free](https://www.ac0.ai/en/field-notes/cloudflare-workers-free-tier-hidden-power): 100,000 requests a day, storage, scheduled tasks, and your code runs in 300+ cities worldwide. No monthly bill.
- [Your own Zapier, for free — and it talks to AI](https://www.ac0.ai/en/field-notes/activepieces-self-hosted-automation): Activepieces is like Zapier but free, open source, and its 280+ integrations work directly with AI agents like Claude.
- [Let AI write your follow-ups](https://www.ac0.ai/en/field-notes/let-ai-write-your-follow-ups): Your CRM knows when you last talked to someone. AI can use that to write follow-ups that actually sound like you.

## Topics

- [AI](https://www.ac0.ai/en/field-notes/tag/ai): 168 field notes tagged AI.
- [open-source](https://www.ac0.ai/en/field-notes/tag/open-source): 141 field notes tagged open-source.
- [tools](https://www.ac0.ai/en/field-notes/tag/tools): 114 field notes tagged tools.
- [workflow](https://www.ac0.ai/en/field-notes/tag/workflow): 102 field notes tagged workflow.
- [automation](https://www.ac0.ai/en/field-notes/tag/automation): 82 field notes tagged automation.
- [self-hosting](https://www.ac0.ai/en/field-notes/tag/self-hosting): 45 field notes tagged self-hosting.
- [MCP](https://www.ac0.ai/en/field-notes/tag/mcp): 21 field notes tagged MCP.
- [agents](https://www.ac0.ai/en/field-notes/tag/agents): 8 field notes tagged agents.
- [Claude](https://www.ac0.ai/en/field-notes/tag/claude): 4 field notes tagged Claude.
- [database](https://www.ac0.ai/en/field-notes/tag/database): 4 field notes tagged database.
- [email](https://www.ac0.ai/en/field-notes/tag/email): 4 field notes tagged email.
- [infrastructure](https://www.ac0.ai/en/field-notes/tag/infrastructure): 4 field notes tagged infrastructure.
- [productivity](https://www.ac0.ai/en/field-notes/tag/productivity): 4 field notes tagged productivity.
- [security](https://www.ac0.ai/en/field-notes/tag/security): 4 field notes tagged security.
- [finance](https://www.ac0.ai/en/field-notes/tag/finance): 3 field notes tagged finance.
- [multi-agent](https://www.ac0.ai/en/field-notes/tag/multi-agent): 3 field notes tagged multi-agent.
- [voice](https://www.ac0.ai/en/field-notes/tag/voice): 3 field notes tagged voice.

## Data

- [Field Notes dataset (JSON)](https://www.ac0.ai/field-notes.json): the full corpus as structured data, CC BY 4.0.

## Pages

- [Home](https://www.ac0.ai/en): what AC0 does and how to start.
- [Growth systems](https://www.ac0.ai/en/services): all AC0 capabilities and their fit.
- [Case studies](https://www.ac0.ai/en/cases): client-safe cases and named AC0-owned projects with verifiable operating scope.
- [Apply](https://www.ac0.ai/en/apply): five questions for a tailored growth mandate.
- [Field Notes](https://www.ac0.ai/en/field-notes): the full, searchable index.
- [Toolkit](https://www.ac0.ai/en/toolkit): the tools we actually run on.
- [Claude Code guide](https://www.ac0.ai/en/guide/claude-code): our working guide.