FRIDAY30 OCT
KICKOFF
DAY 01Meet. Team up. Start building.
The mission begins. Bring your idea, find your rhythm, and get your project off the ground.
A NEW ORBIT FOR BUILDERSDOWNTOWN BOSTON / BASE-X
HOSTED & SPONSORED BY 
RindlerSCROLL TO EXPLORE
RindlerSCROLL TO EXPLORE 01 / THE MISSION
A little ambition.
A lot of possibility.
Bring an idea you can’t stop thinking about. Leave with something you can put in someone’s hands.
Maxxwell Hacks brings builders together in Boston for four days of turning “what if” into “look at this.” Build from October 30 right up to demo day on November 2, then take your work through the rounds to the final stage.
See how demo day works04DAYS TO MAKE IT REAL
03DEMO ROUNDS
01FINAL AWARDS CEREMONY
BOS↗BOSTON, MASSACHUSETTS
02 / THE FLIGHT PLAN
Clear your calendar.
Make some space.
October 30 – November 2, 2026
All event times will be in Boston local time.
SATURDAY31 OCT
BUILD
DAY 02Less “what if.” More “what’s next.”
A full day to experiment, collaborate, and turn your first version into something bigger.
SUNDAY01 NOV
BUILD & REFINE
DAY 03Make it work. Make it yours.
Keep building, test the rough edges, and get your project ready for its moment on stage.
MONDAY02 NOV
DEMO DAY
DAY 04From your laptop to the spotlight.
Wrap up building, present through three demo rounds, and celebrate at the final awards ceremony.
View demo dayDetailed times and the building cutoff will be announced. Building ends before the first demo round on November 2.
03 / THE BIG REVEAL
You built it.
Now show the world.
NOVEMBER 02MONDAY / DEMO DAY
Preliminary demos
Introduce your project and show what you’ve made in the opening round.
Semifinals
Advancing teams take a closer look at their build with the judges.
The final stage
The finalists give their final demos before the winners are selected.
One last round of applause.
Final awards ceremony · November 2
Prize details and ceremony time to be announced.
04 / YOUR HOME BASE
Big ideas.
A downtown home base.
Our venue is BASE-X, a deep-tech community space in the heart of Boston. Its combination of workstations, presentation space, and lounge areas makes it a strong fit for building together and taking the stage on demo day.
Venue
Dates, event access hours, and overnight access are subject to venue confirmation.
05 / MISSION CONTROL
Built together.
Backed by Rindler.
Our host and sponsor. The company behind Maxxwell.
Explore the Maxxwell IDERindlerRindler is the Boston-based company building Maxxwell, a desktop IDE for working with multiple coding agents in one place. Part of Y Combinator’s Summer 2026 batch.
MEET RINDLER ↗06 / BEFORE LIFTOFF
Good questions.
Clear answers.
When and where is Maxxwell Hacks?
October 30–November 2, 2026, in Boston, Massachusetts. Our planned venue is BASE-X, 60 State Street, Suite 1400, Boston, MA 02109. Overnight access is not yet confirmed.
How long can we keep building?
Building runs from October 30 through the start of demo day on November 2. The exact cutoff will be announced before the event; building ends before preliminary demos begin.
How does demo day work?
November 2 has three rounds: preliminary demos, semifinals, and finals. The event concludes with the final awards ceremony that day. Detailed timing and judging criteria will be announced.
Can I still sign up?
Registration is closed. The signup button is disabled and no new registrations are being accepted through this site.
How do I upload my solution?
Solution submissions require authenticated access.
View submission statusWho can participate, and what are the prizes?
Eligibility, team sizes, participation costs, and prize details will be announced. This site does not currently accept applications.
Small spark.
Big launch.
Registration is closed.