Cross-platform file handling
The Go standard library has excellent support for file handling across its supported platforms. The os package allows access to the filesystem (files and directories) and utility packages such as filepath that help to parse and manage locations using the current operating system's semantics. While these operations are likely useful on most devices, they do not extend as well to non-desktop devices where a traditional filesystem is not what the end user is presented with.
Consider mobile devices, for example. Both iOS and Android have a traditional filesystem internally, but the filesystem is not completely available to the device user, nor is it the only source of file data. An application will typically only have access to its own sandbox directory—reading and writing files outside of this space is not permitted—and on iOS, you may even need to request special permissions before accessing it. In addition to that, users now expect...
