According to @alice_und_bob, the Polkadot Builder Party will host three workshops on Oct 9–10, 2025 covering Reliability Dashboard - The end-to-end Cloud approach, Introduction to Polkadot Products, and Deploying Rollups with the Polkadot Deployment Portal; source: @alice_und_bob on X (Oct 8, 2025) and opengovwatch.notion.site. The meetup calendar lists 11 cities across Oct 8–12, 2025: Bangkok, Berlin, Singapore, Hyderabad, Rome, Kisumu, Cebu, Vadodara, Enugu, Nagpur, and Enakulam; source: @alice_und_bob on X (Oct 8, 2025) and luma.com/sub0. For DOT-focused trading calendars, these dates consolidate ecosystem workshops and meetups listed by Polkadot Builder Party with full workshop details at opengovwatch.notion.site and meetup sign-ups at luma.com/sub0; source: @alice_und_bob on X (Oct 8, 2025).