Lab
Three mechanisms, opened up
Interactive plates of the systems behind three projects. Pick a station or use the arrow keys.
One model drives the drawing, the readout, and the screen-reader text, so none of them can disagree.
Fig. 01 / LetCode
Two runners, two strategies
The judge runs entirely in the browser: a disposable worker for JavaScript and a persistent Python runtime.
Step 01 / 04
Arrow keys move. Space plays.
Station 1: Problem
A problem and its test cases enter the runner. The build also runs every reference solution against every case.
55 problems
Fig. 02 / KOP SP
Three doors, one ledger
Money moves only through verified approvals, and the audit entry is written in the same transaction.
Step 01 / 04
Arrow keys move. Space plays.
Station 1: Browser
Holds a session cookie. The browser never sees the Go token.
0 Go tokens exposed to the browser
Fig. 03 / Veilig Melden
A report leaves the building
A report passes an auth guard and four callable functions, and a copy leaves the tenant through a BCC.
Step 01 / 05
Arrow keys move. Space plays.
Station 1: Reporter
Submits without a password. The login link is the credential.
0 passwords to remember
Contact
Interested in working together?
Tell me what you are building and what you need. A short note is enough.