1. Package Management: OpenBSD uses its package management system called "pkg_add" to manage software installations, while Void Linux uses the "xbps" package manager. The two package managers have different formats for package handling and dependencies.

2. Init System: OpenBSD uses the "rc" system as its init system, whereas Void Linux uses runit. The choice of init system affects how processes are started and managed on the system, leading to differences in boot times and system stability.

3. Security Emphasis: OpenBSD is well-known for its strong emphasis on security, with regular security audits and proactive measures to minimize vulnerabilities. Void Linux also focuses on security but may not have the same level of scrutiny and hardening as OpenBSD.

4. Default Software Availability: OpenBSD focuses on providing a minimal base system with essential tools, while Void Linux offers a broader range of software packages in its official repositories. This difference can affect the ease of getting additional software on the system.

5. Community Support: OpenBSD has a strong and dedicated community that is renowned for its emphasis on security and code quality. Void Linux, being a smaller distribution, may have a smaller community and potentially fewer resources available for support and troubleshooting.

6. Release Model: OpenBSD follows a strict release cycle with regular scheduled releases, providing a stable and predictable environment. Void Linux, on the other hand, follows a rolling release model, where updates are continuously provided, leading to more frequent changes and potential instability in the system.

In Summary, OpenBSD and Void Linux differ in package management, init systems, security emphasis, default software availability, community support, and release models.