Here's what I've been building.

Page management, one prompt at a time.

The capture shows the actual main menu and Page setup options from a local run. Choose a saved Page, prepare a post, or check its history without leaving the terminal.

This session was recorded offline with an empty database. Publishing requires a Meta app and Page permissions; live publishing was not tested for this showcase.

Credentials and uncertain requests.

Credentials are encrypted with Fernet using a key derived from a vault passphrase with scrypt. Page metadata and action history remain unencrypted in the local database.

If a write request loses its response, the action may already have succeeded. FBManager records an unknown status instead of automatically retrying, so I can check the result before sending it again.

The rules come before the clever moves.

Before choosing a move, the engine has to know which moves are legal. It handles check, castling, en passant, promotion, repetition, and the fifty-move draw. The SDL interface adds undo, reset, and fullscreen play. The screenshot shows the current app after a scripted opening.

Set the search limits.

Root moves can be split between a configurable number of workers. The desktop app accepts --threads; UCI exposes Threads, Hash, OwnBook, and time controls. Above is one recorded run at depth 5 with one worker.

Run it from the command line.

UCI gives the engine a text interface: send a position and search limits, then read the result. It also responds to stop while searching. The same engine runs without an SDL window. The transcript above shows a recorded command-line session.

Zoom while the image catches up.

Each fractal remembers its view while you switch between them. Drag to pan, zoom around the pointer, and raise the iteration limit for more detail. CPU workers render tiles in the background. Quick previews respond to movement first; the full image follows once you stop.

See what happens when you change c.

In the Julia view, each pixel starts at a different complex number and repeats z² + c. You can adjust the real and imaginary parts of c, or start with one of three presets. The image makes the effect visible; the lesson explains the calculation.

Read the maths, then try the view.

The learning panel covers the basics, mathematics, and history of each fractal in Czech and English. A lesson can load a view for you to explore, so the explanation stays next to its example. All lessons work offline.