In March 2026, Sebastian Kaetsch enhanced hardware security key support in the canonical/snapd repository by adding compatibility for the Tokey 3 FIDO device to the U2F devices list. Working primarily with Go and focusing on backend development, Sebastian updated the U2F handling path to recognize the new device, adjusting the relevant interfaces and snippet counts to ensure seamless integration. This targeted feature improved interoperability with a broader range of security keys, aligning with product goals for secure authentication and device compatibility. The work addressed user onboarding challenges and reduced potential support overhead, demonstrating depth in backend systems and hardware integration.