Yes Or No

1. bun run index.ts
2. http://localhost:3000

list all your filesystem usages. A response example below

[
    {
        "filesystem":"tmpfs",
        "blocks":814028,
        "used":89304,
        "available":724724,
        "free":90,
        "capacity":"11%",
        "mounted":"/run"
    },
    {
        "filesystem":"/dev/sda1",
        "blocks":409659944,
        "used":236901128,
        "available":151875824,
        "free":40,
        "capacity":"61%",
        "mounted":"/"
    }
]

free is a number which means disk space left(percent)

Make response 500 when disk space exhausted

http://localhost:3000?filesystem=/dev/sda1&minfree=40

This url would return 500 when /dev/sda1 disk space remaining < 40%, or return 200.

You can change the url query string for new threshold or target easyly.

That makes you extremely easy for integration of status monitors, such as Uptime Kuma or UptimeRobot.

Futher monitors

If you like this idea please let me know, more items would come (e.g. memory usage)

Lisence

the MIT