Journey to Open Sauce 2026

HEAR US ROAR.

R.O.A.R.

Rex’s Open Assistive Resources

We build open-source assistive tech that gives people a voice. At Open Sauce 2026 you can get hands-on with T-Rex Talker V3, our AAC communication devices that adapt to each user’s abilities — buttons, touch screens, sip-and-puff, and soon eye tracking. Then take on the Head To Head Rubber Chicken Challenge, our hands-on communication-device trainer. It’s all open source. Come build with us.

Featured video — the cable story

Talk about bad luck — I had to have my brother grab some inferior cables on his way to the airport to get my display running, and Linus was giving them away on the other side of the wall!

Watch on YouTube.

Bunny Feeding Frenzy gameplay — SCORE 413 LV 3, pixel-art bunny scene

Debuted at Open Sauce — now live

Bunny Feeding Frenzy is on Google Play. Free.

Debuted at Open Sauce 2026 alongside the T-Rex Rubber Chicken Challenge — now free on Android. iPhone testers needed — TestFlight beta is open (App Store next). Best of all: in the stim version you throw carrots by saying “Pew.” You do have to enable tilt + voice in Settings, but still — “Pew” to throw. How cool is that?

iPhone testers: you may need to install TestFlight first. If you like it, please leave comments and a review — thank you!

Get it on Google Play → Join iPhone beta (TestFlight) → Game docs

Photo albums from Open Sauce 2026

Four albums, one per angle on the show. Tap any cover to open the album on Google Photos.

Open Sauce 2026 Prep album — **Open Sauce 2026 Prep** · Jul 5–18 — the workshop build-out before the show.

os2026 album — Open Sauce show floor — **os2026** · Jul 14–19 — the show floor and the whole trip.

B&H and Sony Launch Party album — **B&H and Sony Launch Party** · Jul 17 — industry night.

T-Rex Rubber Chicken Challenge stand-view album — **Rubber Chicken Challenge — Stand View** · Jul 21 — what the booth looked like as visitors came through.

We’re at Open Sauce — booth FS.219

A triple booth. Come find us in the Fiesta area — the map below shows how to get there from the main aisle.

Show floor map — path from Main to booth FS.219 in the Fiesta area — Map of the walk from “Main” to **FS.219**, near the Fiesta area.

R.O.A.R. booth setup on-site at Open Sauce — FS.219 260024 — The booth on-site — two blue-covered tables, T-Rex banner, R.O.A.R. panel, rubber chickens on the fence. *I wish I’d remember to take photos after I finish setting up… oh yeah, I’m too tired.*

Fresh from the workshop — the booth is real

Before we hauled it to San Mateo: metal parts landed from SendCutSend, the Sip-N-Puff dropped into its orange T-Rex enclosure, and the whole booth came together.

Complete R.O.A.R. Rubber Chicken Challenge booth — assembled, wired, and ready — The complete booth — T-Rex head badge, R.O.A.R. banner, monitor, Sip-N-Puff in its orange T-Rex enclosure, and the base engraved *“Thank you Prusa · SendCutSend”*.

The metal booth assembled bare — Booth assembled — laser-cut aluminum shelves before the electronics went in. *“One unmet need at a time.”*

SendCutSend box opened — raw laser-cut parts — SendCutSend delivery arrives — raw laser-cut parts still in the shipping box.

Sip-N-Puff V1.2 board next to its orange 3D-printed enclosure with T-Rex + chicken — Sip-N-Puff V1.2 populated + its orange 3D-printed enclosure with the T-Rex-and-chicken emboss.

Three rubber chickens standing by for the Challenge — Three rubber chickens standing by — the props for the Head-to-Head Challenge.

Also arriving with us

Bringing the new PCBs.

The full set of production prototype boards landed on June 30 — V3 Stim main, processor + Nonverbal daughter stack, Sip-N-Puff V1.2, and the shared SEESAW daughter. We’re bringing them to Open Sauce along with the booth so you can see the new hardware in person.

See the boards →

What we’re bringing

The devices we’ve built, the open hardware behind them, the trainer game, and what’s coming next.

The T-Rex Talker family — finished builds, four colorways

Eight-button color board — picture-based communication

In use: a child building first associations

Fully open hardware — OLED, rotary encoder, audio, battery

The Head To Head Rubber Chicken Challenge — our trainer game

Coming soon — the next build, in development

Everything we make is open source.

Build it yourself on GitHub