DEJA is free. Expert help is one call away.
Track & Trestle designed and built DEJA. When you want it running tonight — or you're wiring a control panel, adding IO devices, or planning a layout — book a session with us.
- Not sure yet? Book a free discovery callFree 15 minutes to talk through your layout and whether a help session is the right fit. Book a call (opens in a new tab)
- Community (Discord)Free Ask questions, share layouts, and connect with other DEJA users. Join Discord (opens in a new tab)
- Send feedbackFree Send feedback from inside Throttle — Settings › Get help. Open Throttle (opens in a new tab)
What we can help with
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Install & setup
Server, CLI, and your first layout, running tonight.
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Wiring & DCC-EX
EX-CommandStation, boosters, power districts, and track wiring.
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IO devices
ESP32, Pico, and Arduino boards for lights, sensors, and servos.
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Digital Dispatchers
Your EX-CommandStation and DEJA IO boards, pre-wired in one enclosure and tested before it ships.
Learn more → (opens in a new tab) -
Custom control panels
Panels built around your layout.
Learn more → (opens in a new tab) -
Layout builds
Planning and building a layout around DEJA.
Learn more → (opens in a new tab)
Support DEJA development
DEJA is free, with nothing locked. If it earns a spot on your layout, you can chip in.
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One-time donation
Any amount, once. A voluntary contribution that supports development.
Donate once → (opens in a new tab) -
$5 a month
A voluntary monthly contribution that supports ongoing development.
Give monthly → (opens in a new tab)
DEJA is designed and built by Track & TrestleTrack and Trestle Technology, LLC