Imports
- github.com/BurntSushi/toml
- github.com/dolmen-go/contextio
- github.com/gliderlabs/ssh
- github.com/mdlayher/metricslite
- github.com/prometheus/client_golang/prometheus
- github.com/prometheus/client_golang/prometheus/collectors
- github.com/prometheus/client_golang/prometheus/promhttp
- github.com/tarm/serial
- golang.org/x/crypto/ssh
- golang.org/x/sync/errgroup