There are many open-source tools available to automate processes and make your bakery running smoothly, including an automated reward distributor for your delegates and a remote signer for cloud-based HSMs such as Azure/ Amazon AWS.
Rewards Distribution Tools
Tezos Remote Signer - tacoinfra (Github)
Tezos Remote Signer - Polychain Engineering (Gitlab)
Tezos Remote Signer (Azure) - Tezzigator (Github)
Tezos Remote Signer - Signatory by ECAD Labs (Github)
Getting started with Tezos on the Ledger Nano S ( outdated - stay tuned! )