2026-09-03 18:48:32 +09:00
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---
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2026-09-04 14:14:18 +09:00
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type: reference
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2026-09-03 18:48:32 +09:00
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---
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# Navigation service
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Part of **Project Yukart**, making an old 2008 Mitsubishi Z27AG a bit smarter with modern technologies.
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This file serves as the minimalist portal to other docs
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## What this repo is about
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Runs on the Orin. Answers routing questions and publishes turn-by-turn guidance
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onto the message bus, so no display has to know where routes come from.
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Routing is served by a local Valhalla instance against artifacts built by
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[tool-mapmint](gitea:yukart/tool-mapmint), which is the offline-capable default.
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The provider is kept behind an interface so a cloud routing API can be swapped in
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without touching anything downstream.
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- For implementation practice guidelines, refer to the [guidelines](docs/GUIDELINES.md);
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- For implementation plans and history, refer to [them](docs/impl/);
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