⚡ Digital products from the fleetTools for builders.
Tools for builders.
Prompted by experience.
AI prompt packs, engineering playbooks, developer templates, and productivity systems — all built from real shipping experience on the xentropy fleet.
Featured Products
View all →Prompt Pack
150+ AI Prompts for Developers
From boilerplate to production — prompts that actually ship code
150+ prompts across 8 developer categoriesCode generation & boilerplate scaffoldingDebugging & error resolution chains+5
$10$15
Details →Prompt Pack
100+ ChatGPT Prompts for Indie Hackers
Ship faster. Validate cheaper. Build smarter with AI.
Idea validation & market sizing promptsLanding page & conversion copywritingProduct roadmap & feature prioritization+5
$10
Details →Template
Dev Productivity Notion Dashboard
Track sprints, APIs, code reviews, and shipping — all in one place
Sprint planning & retrospective templatesAPI key & credential tracker (encrypted fields)Code review queue with priority scoring+5
$15$20
Details →Why Buy From xentropy?
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Built by Engineers
Every product is designed and tested by working developers shipping production code daily.
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Lifetime Updates
Buy once. Get free updates forever. Products evolve as AI and tools evolve.
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Instant Download
Digital delivery via Gumroad. No shipping, no waiting. Download and use immediately.