Add event: EverythingFast: Developing Performant Modules (closes #97)

Author: github-actions[bot]

content/calendar/everythingfast-developing-performant-modules-2026.md

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+---
+endDate: '2026-09-10'
+externalUrl: https://www.meetup.com/powershell-usergroup-inn-salzach/events/316366917/?eventOrigin=group_upcoming_events
+startDate: '2026-09-10'
+title: 'EverythingFast: Developing Performant Modules'
+virtual: true
+where: Virtual
+---
+There is no  fast...only fast enough, but sometimes fast enough needs to be FAST. We will demonstrate ModuleFast and ExcelFast, the specific issues they address, and techniques in both native PowerShell and C# to make things go vroom!