TBD 🏗️
# Working with Processes - a process can be communicated with through its Handle, which is received once it is spawned - a process can be spawned from a node as an unsupervised top-level process (more on that later) or spawned from other processes which will be their parent and supervise them. - ctx what is it etc communication between processes - send and send_in to send messages - req and req_timeout to send requests