package main

import (
    "fmt"
    "io/fs"

    "github.com/liamg/memoryfs"
)

func main() {

    memfs := memoryfs.New()

    if err := memfs.MkdirAll("my/dir", 0o700); err != nil {
        panic(err)
    }

    if err := memfs.WriteFile("my/dir/file.txt", []byte("hello world"), 0o600); err != nil {
        panic(err)
    }

    data, err := fs.ReadFile(memfs, "my/dir/file.txt")
    if err != nil {
        panic(err)
    }

    fmt.Println(string(data))
}