Hardware makes software’s assumptions visible. A connector fits, but the device does not enumerate. A transfer completes, but the command has not finished. A faster port does not fix a slow firmware loop.
This knowledge base explains the mechanism first, then the trade-offs, evidence, and failure boundaries. Start with USB: from plugging in a device to moving useful data.
Guides #
- 2026
Connect it to the rest of the system #
- Product stories — where implementation meets real-world constraints.
- Engineering snippets — practical software-side patterns.
- All blog posts — backend, databases, infrastructure, and AI.