https://rustman.org Solo founder building products with AI. Principles, methodology, lessons learned. en https://rustman.org/wiki/agent-mistake-fix-harness https://rustman.org/wiki/agent-mistake-fix-harness Tue, 07 Apr 2026 00:00:00 GMT The single most important principle from harness engineering: when an AI agent makes a mistake, don't fix the prompt or try a better model. Fix the environment. wiki https://rustman.org/wiki/agent-self-discipline https://rustman.org/wiki/agent-self-discipline Tue, 07 Apr 2026 00:00:00 GMT Principles for fighting AI agent degradation. The agent tends to drift into comfortable but unproductive patterns. Two mechanisms fight this: wiki https://rustman.org/wiki/apple-on-device-ai https://rustman.org/wiki/apple-on-device-ai Tue, 07 Apr 2026 00:00:00 GMT Unified on-device AI layer for all iOS products (KissMyTask, FaceAlarm, VoiceJournal, QuestSchool). Zero API cost, privacy by architecture, SGR natively via ... wiki https://rustman.org/wiki/cli-first-testing https://rustman.org/wiki/cli-first-testing Tue, 07 Apr 2026 00:00:00 GMT Every project should have a CLI utility that mirrors the core business logic without UI. Not a separate tool — the same modules, different entry point. wiki https://rustman.org/wiki/context-engineering https://rustman.org/wiki/context-engineering Tue, 07 Apr 2026 00:00:00 GMT One of three harness engineering components. The idea: agent context is not chat history — it's a continuously improved knowledge base in the repository. wiki https://rustman.org/wiki/context-graphs-summary https://rustman.org/wiki/context-graphs-summary Tue, 07 Apr 2026 00:00:00 GMT Context Graph — a graph capturing AI agent decision-making trajectories: not just *what* the agent did, but *how* and *why*. "A system of record for decision... wiki https://rustman.org/wiki/decision-making https://rustman.org/wiki/decision-making Tue, 07 Apr 2026 00:00:00 GMT How to make decisions as a solo founder. From mental models to practical frameworks to psychological traps. wiki https://rustman.org/wiki/decision-traces-compound https://rustman.org/wiki/decision-traces-compound Tue, 07 Apr 2026 00:00:00 GMT The economic argument for context graphs: agent decision traces are a compounding asset. Each successful action recorded in the graph improves future ones th... wiki https://rustman.org/wiki/dev-principles-summary https://rustman.org/wiki/dev-principles-summary Tue, 07 Apr 2026 00:00:00 GMT 993-line reference document applied to every project regardless of stack. Injected into PRDs during generation. Covers: SOLID, DRY (but Rule of Three), KISS,... wiki https://rustman.org/wiki/harness-engineering-summary https://rustman.org/wiki/harness-engineering-summary Tue, 07 Apr 2026 00:00:00 GMT Harness Engineering — designing environments where AI agents do reliable work. Humans steer, agents execute. Synthesized from three sources: OpenAI experimen... wiki https://rustman.org/wiki/infra-two-tools https://rustman.org/wiki/infra-two-tools Tue, 07 Apr 2026 00:00:00 GMT Unified infrastructure for multiple mini-startups. Two principles: one project = one deploy config (infra lives in the repo), two tools, no more (SST + Pulumi). wiki https://rustman.org/wiki/kmp-sync-strategy https://rustman.org/wiki/kmp-sync-strategy Tue, 07 Apr 2026 00:00:00 GMT For family/cross-platform apps needing offline-first sync between Android + iOS: Supabase + PowerSync is the recommended stack. MongoDB Realm Sync was deprec... wiki https://rustman.org/wiki/posthog-cross-platform https://rustman.org/wiki/posthog-cross-platform Tue, 07 Apr 2026 00:00:00 GMT Unified analytics for solo founder with mobile apps + web landings. Core problem: one person on landing and in app = 2 anonymous IDs. Broken attribution, bro... wiki https://rustman.org/wiki/privacy-first https://rustman.org/wiki/privacy-first Tue, 07 Apr 2026 00:00:00 GMT Building products where user data stays on-device. Offline-first, local processing, minimal cloud dependency. wiki https://rustman.org/wiki/schema-guided-reasoning https://rustman.org/wiki/schema-guided-reasoning Tue, 07 Apr 2026 00:00:00 GMT Schema-Guided Reasoning (SGR): all projects built from schemas to logic, not the other way around. Schemas are the contract between AI agent, business logic,... wiki https://rustman.org/wiki/solo-methodology https://rustman.org/wiki/solo-methodology Tue, 07 Apr 2026 00:00:00 GMT AI-driven solo development — how one person ships products using LLM agents, harness engineering, and automation. wiki https://rustman.org/wiki/startup-validation https://rustman.org/wiki/startup-validation Tue, 07 Apr 2026 00:00:00 GMT How to validate startup ideas before investing time in building. From quick signal checks to full STREAM analysis. wiki https://rustman.org/wiki/background-jobs-ladder https://rustman.org/wiki/background-jobs-ladder Sat, 21 Feb 2026 00:00:00 GMT 5 tools for background jobs, ordered by complexity. Rule: start with cron, move up only when you need to. wiki https://rustman.org/wiki/agent-sandboxing https://rustman.org/wiki/agent-sandboxing Wed, 11 Feb 2026 00:00:00 GMT LLM agents (Claude Code, Codex, Gemini CLI) run with full filesystem access. Sandboxing via lightweight VMs solves this: agent works in isolation, sees only ... wiki https://rustman.org/wiki/inspiration-sources https://rustman.org/wiki/inspiration-sources Wed, 11 Feb 2026 00:00:00 GMT Curated list of ~60 channels/communities across 7 platforms, organized by relevance to solo founder workflow. wiki https://rustman.org/wiki/kill-iterate-scale https://rustman.org/wiki/kill-iterate-scale Wed, 11 Feb 2026 00:00:00 GMT Hard numeric thresholds for weekly product decisions. No "let's wait and see": wiki https://rustman.org/wiki/launch-playbook-summary https://rustman.org/wiki/launch-playbook-summary Wed, 11 Feb 2026 00:00:00 GMT Operational playbook in 11 sections. Core: idea → live product with traffic in 5-9 days. wiki https://rustman.org/wiki/manifest-summary https://rustman.org/wiki/manifest-summary Wed, 11 Feb 2026 00:00:00 GMT The manifesto (86 lines) establishes 6 foundational positions: wiki https://rustman.org/wiki/one-pain-one-feature-launch https://rustman.org/wiki/one-pain-one-feature-launch Wed, 11 Feb 2026 00:00:00 GMT The antidote to "platform thinking": don't build a platform, don't draw a 50-feature roadmap. One pain, one solution, shipped in days. wiki https://rustman.org/wiki/portfolio-approach https://rustman.org/wiki/portfolio-approach Wed, 11 Feb 2026 00:00:00 GMT Build multiple small products instead of going all-in on one. Pieter Levels: 70+ projects, 3-4 active revenue sources. John Rush: 20+ products. Danny Postma:... wiki https://rustman.org/wiki/privacy-as-architecture https://rustman.org/wiki/privacy-as-architecture Wed, 11 Feb 2026 00:00:00 GMT Key distinction from the manifesto: privacy is not a settings checkbox but an architectural decision made before the first line of code. wiki https://rustman.org/wiki/rag-patterns https://rustman.org/wiki/rag-patterns Wed, 11 Feb 2026 00:00:00 GMT Reference catalog of 7 RAG patterns, each with when-to-use, trade-offs, and components. wiki https://rustman.org/wiki/seed-niche-scoring https://rustman.org/wiki/seed-niche-scoring Wed, 11 Feb 2026 00:00:00 GMT Quick filter for niche ideas before writing code. 4 dimensions: wiki https://rustman.org/wiki/solopreneur-patterns-summary https://rustman.org/wiki/solopreneur-patterns-summary Wed, 11 Feb 2026 00:00:00 GMT Data-driven patterns from successful indie hackers (2023-2026). Used by `/validate` for STREAM scoring and `/research` for market context. wiki https://rustman.org/wiki/codegraph-guide https://rustman.org/wiki/codegraph-guide Sat, 07 Feb 2026 00:00:00 GMT Knowledge graph of source code across all projects. Scans files, symbols (functions, classes, protocols), dependencies, imports, function calls, class inheri... wiki