Switch the For You refresh source

The refresh source controls which API runs when you click Refresh For You timeline. It does not disable The Pipetrix background ingest when xAI is configured.

Source	When to use
Live X API (recommended)	Real following timeline + fallbacks; production-style testing
Grok-generated timeline	xAI-only corpus on refresh; needs XAI_API_KEY
Offline demo	server/seed-tweets.json; no OAuth

Change source

Home: Timeline source dropdown (top strip).

Ranking lab: Refresh source dropdown (same state, synced via sessionStorage + ?home=).

URL parameter

?home=	Mode
live	Live X API
xai	Grok-generated
seed	Offline JSON

Example: https://liveandletdev.com/?page=home&tab=top&home=live

After switching

• Click Refresh For You timeline once to populate ifixedx_local.posts for the new source.

• Or wipe local DB if you do not want old Grok rows mixed in — Wipe local browser data.