Write the roadmap as one markdown page and update it by hand whenever something changes. Cheap to start, and it needs no tooling at all.
Disagree with this?
Contesting a claim is the ordinary way to use this record, not an escalation. A contest is an event on the graph: it renders here, beside the claim, from the next build onward.
Propose a change to the file itself · what these marks mean
Permanent address: n-jvepxjwpl56wvp5tlzuv6rjss4 (the name hand-maintained-roadmap-page may change).