open System
open System.IO
open System.Threading
open System.Threading.Tasks
open Axial
open Axial.Console
open Axial.FileSystem
open Axial.PlatformService
open Axial.Process

Specifications capture stdout and stderr by default. Process.toFlow preserves that policy and returns exact bytes and an encoding-aware text view:

let! result =
    Process.command $"device-tool inspect"
    |> Process.toFlow

printfn "%s" result.StdOut
let bytes = result.StdOutCapture.Bytes

Configure output with Process.stdout and Process.stderr. Targets include complete capture, bounded tail capture, console forwarding, inherited handles, discard, files, sinks, callbacks, and tee composition.

let! result =
    Process.command $"device-tool diagnose"
    |> Process.stdout (OutputTarget.Tee [ OutputTarget.Console; OutputTarget.CaptureTail 65536 ])
    |> Process.toFlow

Use Process.stream when output must be handled before completion:

let events =
    Process.command $"device-tool watch"
    |> Process.framing OutputFraming.Lines
    |> Process.stream

let! collected = events |> FlowStream.runCollect

The stream emits ProcessEvent.Output values followed by one ProcessEvent.Completed. Each output event identifies its stage, channel, text, and timestamp. Pulling provides bounded backpressure. Ending consumption early interrupts the producer fiber, which terminates the native process topology before the Flow scope closes.

OutputTarget.Inherit gives the child the host handle directly. Inherited output cannot be observed, captured, or combined in a tee because it bypasses Axial's redirected streams.