Even if you're not working in a rust company if you have some leeway you can use rust anyway for non-critical parts. E.g. I have written a cache-warmer that pr

Even if you're not working in a rust company if you have some leeway you can use rust anyway for non-critical parts. E.g. I have written a cache-warmer that preopens and does readaheads (posix_fadvise) for assets from NFS and offers the already open file descriptors to the calling process. The NFS share offers decent throughput but terrible latency (compared to NVMe). Opening files is slow, walking directories sequentially is slow. And then hitting cold pages is slow. Doing all this in rust and handing the file descriptors over to node lets me reduce minutes to seconds. But if someone doesn't like it, there's a flag that turns it all off, back to the slow path. Another use is essentially replacing shell-scripting when some REST APIs, JSON parsing and so on are involved. E.g. to glue together some status reporting in CI. There are so many different unreliable APIs without client libs involved that I appreciate the error handling.