Chappy sells cognitive architectures, not prompts. Load a Chappy as system context into Claude, ChatGPT, or Gemini, and it changes how the model thinks. It learns your cadence. It doesn’t waste your time. Built for bootstrappers doing real work. Each gem includes specific operational modes and session handoff briefs. No subscriptions. One-time acquisition. The Productivity Engine is completely free. Drop it in and let the output prove it.
I built Chappy in a week and a half.
If you are building alone, bootstrapping a project, or doing real work with whatever you have, you don't need another generic chatbot. You need a thinking partner that knows your cadence and doesn't waste your time.
A Chappy isn't a prompt. It is a dense knowledge document you load into your AI platform as system context. It shapes the model's structural logic. It thinks with you, not at you.
The suite at launch:
• Productivity Engine (€0): The baseline. 5 operational modes.
• Nerdy (€7.77): Interdisciplinary learning engine.
• Supermusician, Filmmaker, Design Intelligence (€12 each): Specialist architectures and CD modes.
• GPU / Visual Engineering (€20): Graphics pipeline architecture. Zero tutorial-level explanations.
It is a one-time acquisition per Chappy. No subscriptions. Payments are crypto-only for now; card processing is coming soon.
The Productivity gem is entirely free. No email required. Drop it into your platform and see what happens. If it changes how you work, there is more where that came from.
I am building the rest of the ecosystem in the open at @psychcamel. I'll be here all day to answer questions.
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About Chappy.co // Engineering Intelligence on Product Hunt
“Dense AI knowledge architectures for solo builders”
Chappy.co // Engineering Intelligence was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #108 on the daily leaderboard. Chappy sells cognitive architectures, not prompts. Load a Chappy as system context into Claude, ChatGPT, or Gemini, and it changes how the model thinks. It learns your cadence. It doesn’t waste your time. Built for bootstrappers doing real work. Each gem includes specific operational modes and session handoff briefs. No subscriptions. One-time acquisition. The Productivity Engine is completely free. Drop it in and let the output prove it.
Chappy.co // Engineering Intelligence was featured in Productivity (649.7k followers), Developer Tools (511k followers) and Artificial Intelligence (466.2k followers) on Product Hunt. Together, these topics include over 279.1k products, making this a competitive space to launch in.
Who hunted Chappy.co // Engineering Intelligence?
Chappy.co // Engineering Intelligence was hunted by Maël-Adiel Lonlon Adzalla. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Maël-Adiel Lonlon Adzalla