https://producingtechnology.com/65-apps/wanglisa_184789_15202200_name.html
?url=... query param to preload a JSON source from the address barSingle HTML file, no frameworks. Collapse empty dashboard sections until data loads, or render ghost rows as a real skeleton state. On first visit, auto-populate with the bundled sample so the app is never empty on landing — keep the Load JSON and Use Sample buttons as a “replace” action. Add JSON validation: on bad input, show an inline error with the offending path (e.g..skills[2]: expected string) instead of silently failing. In the Raw JSON tab, show a collapsible schema hint so users know what fields this app expects before they drop a file. Persist the last loaded JSON inlocalStorageso refreshes don't wipe state. Add an Export button (download current JSON) and a Copy share link button that builds a?url=...URL from the current source. One piece of personality: on the Experience Timeline, compute and show total years of experience, or highlight the most recent item with a “now” chip.