T

mikkeli fa49976efd Verify Valhalla on arm64; correct driving-side and retention decisions

arm64 is no longer a risk: verified end to end on mikkeli-orin-nano-2
(L4T R36.4.7). The official image publishes linux/arm64, runs natively, and
the full pipeline works including a served route.

Corrects the Japan guidance. Advising a regional extract was wrong for the
admin build: driving side is a country-level property, and a Shikoku extract
produces no country row and drive_on_right=1, silently giving right-hand
traffic routing. Admins must come from the full extract; routing tiles may
still come from a region.

Decision 14 closed: recordings bounded with rotation, enforced by the writer.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013kj58Jugkic783b8ZrtTVZ

2026-09-04 10:56:14 +09:00

docs

Verify Valhalla on arm64; correct driving-side and retention decisions

2026-09-04 10:56:14 +09:00

OVERVIEW.md

added overview

2026-08-07 12:58:17 +00:00

README.md

Add navigation, Orin runtime and data flow design; rework repo naming

2026-09-04 08:25:26 +09:00

README.md

Project Yukart

Making a 2008 Mitsubishi Colt Ralliart (Z27AG) a bit smarter with modern technologies. What the system is meant to do is described in OVERVIEW.md.

This repository is the overview and roadmap only — it holds no code. Every application or application cluster lives in its own repository and is indexed here.

Documents

Overview — what the system is meant to do
Architecture — system shape, services, message bus, display contract
Orin runtime — what runs on the board: memory budget, startup tiers, audio
Repositories — repo layout, naming, template-repo policy
Roadmap — phases and current status

Repository index

Repository	Role	Status
project-yukart	This hub — overview, roadmap, cross-cutting design	Active
orin-nano-env-setup	Jetson host bring-up: drivers, kernel modules, OS-level setup	Active

Planned repositories and the reasoning behind the split are described in docs/REPOS.md.

Hardware at a glance

Part	Role
NVIDIA Jetson Orin Nano Super (`mikkeli-orin-nano-2`)	Main compute, JetPack r36.4 / Ubuntu 22.04
PEAK PCAN-USB	Car CAN bus access (`can1`, 500 kbps)
Onboard MTTCan	Second CAN interface (`can0`)
Waveshare SIM7600G-H-M.2	LTE Cat 4 + GNSS

Details and rationale live in the environment repo's bill of materials.