Hackathon build

PunchLyne

The keyword, in the creator’s own mouth.

The video is finished, and the phrase that would help it get found was never said. PunchLyne adds that one sentence at the end. Same face. Same voice. The original file stays as it was. David Bramante built it at CodexDeus for the Texel engineering track of the Machine Cinema GenJam, held for the Austin AI Film Festival.

Sister idea

Same creator problem. A different product.

TickyTalky was the earlier build: a content strategist that looks at what a creator has already posted and plans the next videos. PunchLyne starts after the camera is off. The video exists. The searchable line does not.

Platforms transcribe what is spoken. A caption added later is not the creator saying the phrase. PunchLyne makes the creator say it, once, at the end, and leaves the rest of the video alone. That is the influencer and content-creator version of the same instinct behind TickyTalky, pointed at a finished post instead of a content calendar. The public creator work lives on Technically David.

How it works

Four steps. The original stays.

Upload the finished video

The creator already shot the video. PunchLyne does not recut it and does not replace it.

Name the keyword

The missing phrase is the one a platform can transcribe and index. The public example is Maya, who had not said “best protein powder for runners.”

Write and speak one sentence

xAI Grok writes a single sentence that includes the keyword. xAI text-to-speech speaks it in a natural voice.

Move the mouth, then staple

The Texel Lip-sync API moves the creator’s mouth to that audio. The Texel Video Encoder appends the new clip. The original stays the original.

The room

Machine Cinema, Cannon Studio, and Texel.

Minh Do

Co-founder and CEO of Machine Cinema. Machine Cinema hosted the Global Virtual GenJam with the Austin AI Film Festival and AITX. Minh emceed the jam.

Chase

Chase judged Cannon Studio’s filmmaking track. That brief was a one-to-five-minute short on “Go Your Own Way.” PunchLyne was built for the other track, the Texel engineering brief.

Rahul

Rahul, of Texel. Texel sponsored the engineering track: build an app on the Texel API. PunchLyne is the app David built for that brief.

Tech

Lip-sync is the hard part.

A voiceover can be dropped on top. A subtitle can be burned in. Neither one makes the creator’s mouth say a new word. Texel does that, and then joins the new clip to the video the creator already had.

Texel Lip-sync API

Moves the creator’s mouth to the new line. This is the part a subtitle or a voiceover cannot do.

Texel Video Encoder

Staples the punchlyne onto the end of the original video.

xAI Grok

Writes the one sentence that carries the keyword.

xAI text-to-speech

Speaks that sentence.

React 19 and TanStack Start

The web app, including the four-step demo.

Vercel

Where www.usepunchlyne.com is hosted.

FAQ

What the build is, and what it is not.

What is PunchLyne?

PunchLyne adds one spoken search phrase to the end of a finished creator video. The new line uses the creator’s face and voice. The original video is left untouched. The public app is at https://www.usepunchlyne.com.

Which hackathon was PunchLyne built for?

The AAIFF Global GenJam, October 8–10, 2026. Machine Cinema ran the 48-hour virtual jam with the Austin AI Film Festival and AITX, the week before the festival at Zach Theater in Austin on October 16 and 17. PunchLyne was built for the engineering track sponsored by Texel.

How is PunchLyne related to TickyTalky?

Both are creator tools from David Bramante. TickyTalky plans what to post next. PunchLyne finishes a video that is already shot by appending the keyword the creator forgot to say. Same social, influencer, and content-creator territory. Different product.

The app

Open the GenJam build.

PunchLyne is live at usepunchlyne.com. The demo walks Maya’s video from the original, to the spoken keyword, to the stapled cut.

usepunchlyne.com