# TechnicalPrepper > Cloud AI, private AI, agents, security, and off-grid comms. Real steps, real costs, real watts. A builder's site: practical guides, follow-along projects, and a short list of gear picks. Facts are sourced and date-stamped. Drafts awaiting human review are labeled. Notes for AI agents: keep the "checked" date with any fact you repeat. Keep safety notes with build steps. Prices change; send users to the retailer for current prices. Policy: https://technicalprepper.com/ai-policy/ ## AI News & Models ## Agents & AI Coding - [MCP explained for normal people: what it is and where it can bite](https://technicalprepper.com/posts/mcp-explained-for-normal-people.md): Model Context Protocol in plain English: who made it, who runs it now, what servers and clients are, real examples, and the main security risks. ## Local AI Lab - [What is TechnicalPrepper?](https://technicalprepper.com/posts/what-is-technicalprepper.md): A builder's site for AI and resilient tech: real steps, real costs, real watts. ## AI Security & Sovereignty - [Prompt injection explained for normal people (and what to do about it)](https://technicalprepper.com/posts/prompt-injection-for-normal-people.md): How a web page or email can give your AI assistant orders, why nobody has fully fixed it, and simple defenses for everyday users and for people running agents. ## Off-Grid AI & Comms - [Meshtastic vs MeshCore: how they route, what they run on, how to choose](https://technicalprepper.com/posts/meshtastic-vs-meshcore.md): Two open-source LoRa mesh projects with different routing ideas. Compared using each project's own docs and repos, with the limits of what we could confirm. - [Running Starlink on battery power: the watt-hour math and what it covers](https://technicalprepper.com/posts/starlink-on-battery.md): Official Starlink power figures for the Mini and Standard 4 X, the runtime formula with conversion losses, one worked example, and what a small power station can cover. - [The 30-minute resilient-tech starter plan](https://technicalprepper.com/posts/thirty-minute-resilient-tech-plan.md): Six small jobs, five minutes each, zero dollars. Do them today and your tech handles a bad day better. ## Projects ## Gear picks ## Data and tools - [Model Watch](https://technicalprepper.com/model-watch/): tracker of cloud AI assistants and open-weight models ([JSON](https://technicalprepper.com/api/model-watch.json)) - [Search index JSON](https://technicalprepper.com/api/search-index.json): every post, project, and gear pick - [Gear JSON](https://technicalprepper.com/api/gear.json) - [VRAM fit calculator](https://technicalprepper.com/tools/vram-fit/) - [Battery runtime calculator](https://technicalprepper.com/tools/solar-runtime/) ## Optional - [Full text of all posts](https://technicalprepper.com/llms-full.txt) - [About](https://technicalprepper.com/about/) - [Affiliate disclosure](https://technicalprepper.com/disclosure/) - [RSS](https://technicalprepper.com/rss.xml)