29 Oct: "Put yourself in it" (vibecider4)

Plan: plan/2026-10-29-dailies-you-in-it.md. The boss's words that set it (28 Oct): a scrolling site alone "is not impressive to me at all"; what is, is the creator talking about the page, overlaid on top of it as it scrolls.

What shipped (live on tap.bananafest-destiny.com/make/)

• Under a read page, a new card, "Put yourself in it": drop a 10–90 s video of yourself talking about the page (it needs sound). Dailies photographs the page with Cloudflare's Browser Rendering (one full-page phone screenshot plus where its headings, buttons and text sit, kept in KV for a day per URL), transcribes your sound the way clips are, asks GPT where the page should be scrolled while you say each thing (up to 8 stops), and renders in your browser: the page scrolling (hold, then glide), you cut out of your background by MediaPipe's selfie segmenter, bottom-centre with a soft shadow, your words as captions above you, the site's name in a pill on top. Three layouts: Cutout, Bubble (a circle, no cutout) and Split (page on top, you below). The same side panel renders, downloads and drafts to Buffer; title, caption and hashtags come from what you said.
• Worker: POST /api/shot (10 a day per account, cached by URL, 12 MB limit, a 390×4000 viewport if the full page fails) and POST /api/scroll (counts against the script cap). Two new secrets on the worker, BR_TOKEN and CF_ACCOUNT_ID (names only here).
• Privacy page: a new section, "Putting yourself in it".
• clips.js now exports its open/decode/listen/sound/put/lines pieces so you.js reuses them; clips behave as before. Captions can be placed at a given height (above the person).

Numbers

• Cutout spike, headless Chrome with SwiftShader, 288×512 work canvas: CPU delegate 36.5 ms a frame in one pass, 66 ms with the crop second pass (needed for a small figure, or the head goes); the GPU delegate 229 ms because of readback. So a probe runs two trial frames and picks CPU when one takes over 80 ms.
• First full run, a 30 s public-domain NASA interview clip (in the scratchpad, not committed) over the Comic Cover page: the card was up in 7.7 s (screenshot and transcription run together), GPT set 4 scroll stops, the render took 286 s and made 11.8 MB.
• Why 286 s: timing every drawing step at 1080×1920 gave 0.0–0.1 ms each; the software H.264 encoder in headless Chrome took 387 ms a frame. The encoder is the whole cost, as it is for clips; a real Chrome with a hardware encoder is far faster. No drawing change was needed. The mask is now found at most 22 times a second and reused between frames, since a talking person barely moves.
• Second run, 12 s, screenshot from the cache: card in 4.6 s, render 97 s, 4.8 MB. Where the clip fades to black the cutout falls back to the bubble, as designed.
• What it looks like: the test figure is small and far away, so upscaled, and its legs ghost against a busy page. A phone selfie, close and lit, is the easy case for the model. Not yet tried with a real phone video; that is the boss's try.

Live checks after deploy

/make/ 200 with the card; /make/you.js 200; /privacy with the new section; POST /api/shot with no session → 401.

Actual, 29 Oct, later: record it here, the pointer, music (vibecider4)

Plan: plan/2026-10-29-dailies-record.md, the four things the first plan left. The boss's word: "go for the next steps".

What shipped

• Record it here. Under "Put yourself in it", "Or record it here" opens a box: a text area for what you'll say, "Write one for me" (new worker route POST /api/say: GPT writes one spoken paragraph from the page for 20/30/45/60 s, in the first person, no hashtags; counts as a script run), a pace slider (100–200 words a minute), then the camera preview (mirrored, 9:16 on a phone camera, whatever the camera gives otherwise) with the words rolling over its top half at that pace after a one-second hold, a 3-2-1 count, a timer with a red dot, and a Stop. The take plays back; "Use this take" feeds it to the same path as a dropped file. MediaRecorder writes MP4 (Chrome, Edge, Safari); Firefox only writes WebM, so it gets a message to drop a file instead. The recorded MP4 is fragmented, which the mp4box reader used to see as zero samples; open() now reads such a file whole (under 300 MB) and the Opus codec string is lowercased for the decoder.
• The screenshot ahead of time. The page is photographed as soon as a video is picked, dropped or the camera starts, not when "Make the video" is pressed; one in-flight request per URL.
• Music under the voice. The same music control as the link cards (file, start, volume); mixed at 0.3× under the voice with the usual fade in and out.
• A pointer that presses what you name. The planner's keyframes now carry tap: {x, y} when a segment really says to press, tap or click a named element (the element list sent to GPT has positions and sizes; the tap is the element's centre). A gold disc with a white rim glides in from the lower right as the page glides, a ring pulses when the page lands, and it fades 1.6 s later. Drawn over the person, like a cursor in a screen recording, else the person hides the button. The card's note says how many buttons get pressed.
• Privacy: camera and microphone only while the box is open; the take stays on the device; "Write one for me" sends the page text to OpenAI.

Numbers (local dev server, headless Chrome for Testing, fake camera fed

a public-domain NASA clip, never committed)

• Script written in 3.1 s (78 words for 30 s). Camera to first frame under a second. Prompter rolled 42 px by 5 s at 150 wpm. A 10.6 s take at 360×640 (the fake camera's size) opened, transcribed, planned: card in 4.4 s with 4 scroll stops; render 85 s; 4.8 MB, H.264 + Opus.
• Asked straight, the planner put a tap on "Make my cover" when the words said "press Make my cover", and on "Download the cover" for "download it print size"; none when nothing was named.
• Pointer and music run (talk clip dropped, two taps forced into the plan, a 440 Hz test tone as the song): render 102 s; the tone measures 4–5× its neighbouring frequencies in the output and under 1× in a render without music, so the mix is in. The first pointer was white on a white page and under the person: invisible. Now gold, rimmed, on top.

The look, redone after the boss saw the frames

The boss, shown eight frames of the first pointer-and-music render: "I mean, thats not good enough. Look at those screenshots". What they saw: the person centred over the page and hiding it, legs ghosting against page text, captions printed over the page's own words, and a pointer that could not be found. The frame is now composed instead of layered:

• The page scrolls inside a rounded phone-shaped window (840 wide, 1110 tall) on a backdrop made from the page's own colours, blurred and darkened, with a vignette. The site's name sits in its pill above the window.
• The person is cut out bottom-right, at most 46% of the frame tall and 48% wide, standing in front of the window's lower corner, never over its middle. The bubble layout keeps the circle bottom-left.
• Captions are a dark rounded box beside the person, left-aligned, 72 px uppercase, first line white and the rest gold, lifted 190 px off the bottom so TikTok's own overlay does not cover them. The split layout uses the same box over the chest, and shows a portrait clip from near its top so the face is in the band; its pill has a dark bar instead of sitting on the page heading.
• The pointer stays gold with a white rim, drawn over the person, inside the window.
• The card's preview is drawn at the first press (or a few seconds in), not at one second, so it shows the page scrolled and the pointer down.
• Test footage: the full-body NASA clip was the worst case for the segmenter (legs, a busy room). A head-and-shoulders crop of the same clip, scaled to 540×960 like a phone selfie, is now the test; still not a real selfie.
• Frames of the new render were put in front of the boss before this went live.

Not done

• A real phone, a real face, Safari: the boss's try. Firefox can't record here by design.
• The recorded take's length shows "11 s" for 10.6 s; fine.