Tools you talk to that take action.
1 project →I build AI you can leave running.
I'm Leonardo Cardoso, a senior software engineer in Berlin with over a decade in production codebases across backend, web, and mobile, currently at Trade Republic. a7t is where I publish the agentic systems I build off-hours, the ones I actually keep running every day.
The five
a · _ · tMemory you can trust and recall.
1 project →Infrastructure for agents and pipelines.
2 projects →Routines that hold the line without you.
2 projects →Agents that plan, act, and report back.
1 project →Projects
open sourceOpenAI-compatible router that greedy-batches calls so a burst of requests costs one model swap.
Five workflows that pick issues from a project board, implement them, fix their own CI failures, merge green PRs, and keep the board updated.
GitHub Actions + Fastlane that take a clean Xcode project from feature-merged to TestFlight delivered, version bump and App Store metadata included.
A native macOS companion that lets you browse Claude Code sessions, explore diffs, and re-run commands, all from a polished SwiftUI interface.
Articles
long-form, slowly writtenThe MoE Speedup, Measured: 50 Prompts, Two Local Qwen Models, One Mac Studio
A dense 27B at Q8 runs my local chat at 15 tokens a second. Its 35B Mixture-of-Experts sibling runs the same prompts at 70. I ran 50 through…
The bottleneck in enterprise AI isn't the model. It's the context layer underneath.
Every team building AI inside a company hits the same wall: the model doesn't know who you are. Why vector RAG hits a ceiling on relational data, what…
Almost sherlocked by Anthropic
On the same day I released Three-Body Agent, Anthropic shipped Managed Agents. Two solutions to the same problem, one solo dev and one frontier lab, no overlap in…
Booklets
Architectural deep-dives, one-time price. Lifetime updates.v0.1 · 41 pages
Three-Body Agent: the Playbook
Blueprints for autonomous frontier LLM pipelines that carry a GitHub issue to a merged pull request, with no human in the loop.
Coming soon
Slipway: the Playbook
The iOS release pipeline, written down: GitHub Actions and Fastlane carrying a merge on main all the way to a TestFlight build.
Contact
work with meWant one of these wired into your stack, or a system spec'd from scratch? Send me an email.
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