Add Rollgate to Miscellaneous

[tech-and-finance]

Adds Rollgate to the Miscellaneous section, alongside FF4J and Togglz.

Why this fits

The list currently includes FF4J and Togglz — both self-hosted feature flag libraries. Rollgate fills a gap: it is a cloud-managed SaaS feature flag platform with a Java SDK, distinct in scope from the existing entries.

Unique features vs FF4J/Togglz

• Managed SaaS — No infrastructure to host/maintain
• Real-time updates via SSE — Flag changes propagate to connected clients in seconds
• Scheduled flag changes — Program activations for a future date
• Instant rollback with full state snapshots
• Gradual rollouts via consistent hashing (MurmurHash3)
• A/B testing with variant tracking
• 13 SDKs across Java, Go, Python, .NET, Node, and frontend frameworks (all open source)

Meets commercial criteria

• Clear pricing: https://rollgate.io/pricing
• Free tier: 500K requests/month, unlimited flags, all SDKs included, no credit card required
• English documentation
• Java SDK on Maven Central: io.rollgate:rollgate-sdk
• Open-source SDKs: https://github.com/rollgate/sdks