Private beta waitlist

Keep your coding skills sharp in the AI era.

Or forge them from zero. Buildmancer skips toy exercises and turns real engineering projects into guided missions: servers, shells, databases, developer tools, and your own GPT, with tests, feedback, and a workspace built for serious practice.

No passive video lessons Build real systems Tests from the first task

▶ Watch demo Join waitlist →

Launchpad access

Get in early

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We are giving early access to builders who want deep engineering practice before the product opens publicly.

Early access to the private beta

Vote on the next systems to build

Invites to guided cohorts and demo sessions

Product viewport

Watch the loop in one screen.

The demo shows the core promise: brief, code, files, tests, and progress connected tightly enough that practice feels like shipping.

buildmancer-demo.mp4

workspace tour brief · editor · tests · progress

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Real code

Every module ends in a working artifact, not loose theory.

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Immediate feedback

Tests and checkpoints show exactly what your system handles.

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Integrated workspace

Editor, brief, files, tests, and progress live in one surface.

01Go

HTTP server

Sockets, parsing, routing, responses, and load-test checkpoints.

02Rust

SQLite clone

Pages, cursors, B-trees, persistence, and query execution.

03C

Unix shell

Processes, pipes, signals, jobs, and terminal control.

04AI

Build your own GPT

Tokenization, attention, training loops, inference, and evals from scratch.