jetson-derive-carrier Customize first-run gate for any skill on a custom carrier. Resolve the active target per . Refuse if no block, or if is missing ( first). Template file create/copy rows land in a single overlay-tracker commit and copy directly to the custom-carrier-renamed target path — reference-named pristine files are never staged (see Fork plan for the local rule, which overrides the standard pristine + customization split from the workflow); conf-chain discovery follows per-board conf dispatch. Kernel base DTB is not forked — carrier deltas layer as a DT overlay wired via . Identif…