Karsher - dumb cache / dumb terminal

Static build using MUSL:

rustup target add x86_64-unknown-linux-musl

RUSTFLAGS='-C link-arg=-s' cargo build --release --target x86_64-unknown-linux-musl

should print "statically linked":

``` ldd target/x86_64-unknown-linux-musl/release/karsher | grep NEEDED

```

todos

• ~~rustyline (https://crates.io/crates/rustyline)~~

https://user-images.githubusercontent.com/3816305/173184980-d5152f9e-acf8-4f45-b97f-aeea472d52ac.mp4