June 2026: Delivered key features and reliability improvements across getAlby/hub and lightningd/plugins, driving tangible business value through new capabilities, more stable CI, and better configurability. getAlby/hub added internal CLN invoice preimage generation to support sub-wallets, enhanced backend compatibility messaging, and test coverage for unsupported backends, enabling smoother onboarding of sub-wallet workflows. In lightningd/plugins, updated CI to CLN 26.06.1 across pipelines and documentation, ensuring compatibility with latest CLN features; migrated the rebalance plugin to getroutes with API simplifications to align with newer CLN versions and improve routing correctness; refreshed dependencies (sling 4.3.0, clnrod 0.6.0, payany 0.3.2) to incorporate fixes and improvements; and tightened configuration typing for summary-availability-window and donations-related options, supported by updated tests. Overall impact: improved product capability (sub-wallets), stronger test stability, and more maintainable, forward-compatible plugin code. Technologies demonstrated: Core Lightning integration, Python-based plugin development, RPC/API migrations, CI/CD and GitHub Actions, dependency management, and test-driven validation.