John Mann · Personal workshop
Experiments in software, media, leadership, and the web by John Mann. Some are useful. Some are unfinished. All of them taught me something.
Selected work
Working software, prototypes, media, and useful leftovers.
Featured experiment
A small product lab for testing real problems through focused, browser-based tools. Its first experiment, Migration Receipt, compares CSV exports without uploading the data.
A human-led system for developing coherent personas through evidence, deliberate decisions, public expression, and ongoing continuity.
A fictional Chattanooga artist whose songs and public presence show the persona framework in practice.
A fictional New Yorker whose personal journal shows how a persona's story continues beyond the framework.
A visual office for AI-assisted software work. Explore a synthetic team demo; invited collaborators can sign in to see a private GitHub-backed workboard.
Lightweight layouts for interviews, live video, and screen recordings—built to explore how far the browser can go without a production suite.
Fitness tracking for personal trainers and clients, with workout assignment, progress tracking, and Supabase-backed dashboards.
A financial-literacy app where kids learn through interactive lessons, games, and savings goals.
Open-source uptime and response-time monitoring with incidents, alerts, scheduled checks, and billing workflows.
A deliberately small browser utility for capturing repeated time intervals without setup, accounts, or extra ceremony.
A visual scratchpad for testing motion, generated backgrounds, and atmosphere before every experiment has a practical purpose.
Recorded conversations about the people, decisions, and lived experience behind technical and creative work.
Practical writing and resources about engineering leadership, artificial intelligence, startups, and product execution.
Small archived experiments in resilient HTML, constrained layouts, and the unusually limited web platform inside email clients.
From the notebook