Private test · by invitation

Explainer videos with a presenter who points at what matters

Upload your study material. The engine plans a series, writes and draws every video, voices it and publishes it on your schedule. You approve the plan, the draft and the release.

Request access See what goes in a video

9:16 · 1080×1920
27 element types
Captions word by word
YouTube · Instagram · TikTok

A light-theme frame from an Agile video: a presenter next to backlog cards ordered by value

A night-theme frame from a cybersecurity video: a presenter, an encryption diagram with gears, and a caption with one word highlighted

The presenter explains, looks at the diagram and raises a pointer on the key word.

01 The presenter

Someone on screen who explains

Every video has a drawn presenter. They look at what is happening, point at it on the key word, and step forward for the question or the takeaway. The viewer always knows where to look.

The presenter beside the takeaway of a computer systems video: overlap ready work

Looks where the story is
The presenter's eyes follow the active element. The camera cuts to them for a question, a new chapter, a takeaway or a joke, then back to the content.
Camera
Points at what matters
On the most important word the presenter raises a pointer at the element being explained.
Point
Drawn from a photo
A photo becomes a presenter drawn in your channel's style, checked on a sheet before the first video.
Photo
More than one presenter
Regular and guest presenters, each with their own voice. A series picks its cast, and one presenter can hand a video over to another.
Cast
Presenters talk to each other*
Two presenters in one frame, a dialogue in two voices, each pointing at their part.
Beta

* In beta. Dialogue between presenters is being finished. Today a video can open with a short scene where one presenter hands over to another.

02 How a series is made

From material to schedule

The engine does the long work. You decide at three points, and nothing moves past them without you.

ENGINE Plan Write · draw Draft Final Publish YOU Upload Approve Approve Approve

01
YOU
Upload
Add your study material as text or Markdown.
02
ENGINEYOU APPROVE
Plan
The writer splits it into episodes with briefs and release dates. You approve the plan or ask for changes.
03
ENGINE
Write and draw
Script, storyboard, captions and publication text, checked automatically before anything is drawn.
04
ENGINEYOU APPROVE
Draft
A full video with a free draft voice, sent to your phone. Approve it or ask for changes.
05
ENGINEYOU APPROVE
Final
The premium voice, the final render and an automatic check. You approve the release.
06
ENGINE
Publish
Out on its date: YouTube and Instagram at the slot, TikTok to your inbox to post.

Nothing paid runs before you approve the draft. Nothing goes out before you approve the release.

03 What goes in a video

Diagrams, code, live models

The storyboard picks from 27 element types. Each one moves on the spoken word, and a second render of the same video comes out identical to the first. Every frame below is from a published video, unedited.

row
database
note
stat
bars
grid
text
glyph
device
logos
layers
wave
pipeline
lanes
array
graph
scale
chart

Pick a highlighted type to find it in the frames. Tap a frame to see it large.

Cache and memory cells with a code panel and a count of three hits and one miss — `memorypanel`
Cache lines: 3 hits, 1 miss

Four execution units on a timeline with work and wait intervals, above dependency code — `timelinepanel`
Four units, work and wait

A layered drawing of a processor with one core outlined and labeled — `part`
A processor, one core in focus

A decryption diagram: private key, received ciphertext and readable message, with gears — `groupgears`
Decrypting with the private key

Requests from sales, support and an executive flowing to one product owner card — `groupcard`
Requests meet one owner

A checklist of three product pitch questions — `list`
The pitch, question by question

A gauge reading focused under the chosen focus card — `meter`
Focus, measured

Cache cells used as pixels with counters for bytes used per line and lines fetched — `memoryscoreboard`
Used per line, lines fetched

Night theme title card: Public and private keys

Night and light

Two themes, each with its own fonts, header and caption style. A channel keeps a dictionary of its icons, so the same idea is drawn the same way in every video.

04 Everything else

What comes with every video

Picture

A camera that edits itself

Close-up on the presenter, the content full screen, or the whole frame, chosen for every beat.

Infographic or live model

Explain with diagrams and a presenter, or build each chapter around a live model.

Consistent icons

Your channel keeps a dictionary of icons. A missing one is found and added to your set.

Clear of the platform buttons

Content and captions stay above the buttons at the bottom of the screen.

Voice and sound

A voice for each presenter

Every presenter speaks with their own voice and pace.

Captions word by word

Drawn into the frame and timed to the voice, with a subtitle file alongside.

Sound on every cue

Each appearance and change has its sound, mixed under the narration.

Change a picture, keep the voice

The voice is saved piece by piece, so a visual edit never pays for the same voice twice.

Workflow

Changes in plain words

Comment on a plan or a draft. The engine reworks it and keeps the earlier version.

Checked before you see it

Storyboards are checked against the rules before drawing, finished videos before they reach you.

The same render every time

Render a video twice and get the same frames, bit for bit.

Publishing

A release calendar

Cadence, release time and time zone for each channel, daylight saving included.

Uploaded ahead

YouTube gets the video early as private and makes it public on its slot.

Titles and descriptions

Every video comes with its title, description and caption.

05 Where you run it

Browser, assistant, phone

In the browser

Your videos, approvals and new series, from any computer.

With your AI assistant

Connect it over MCP and run the same steps in a conversation. Paid and public steps still ask you first.

On your phone

Telegram tells you when a draft is ready, with a copy to watch, when something fails and when a video goes out.

Made with it

Class in Bytes

A channel of short lessons on computing, written, drawn and published by the engine.

series

videos published

Cybersecurity basics 22 / 24
Agile 9 / 24
High-Performance Computer Systems 4 / 16
as of 24 Oct 2026

06 Contact

Request access

The engine is in a private test. Tell us about your channel or course and what you want to teach.