netlify.toml

[Settings]
  ID = "2e89e032-86fd-461e-b581-9851db7afc59"

# Settings in the [build] context are global and are applied to all contexts unless otherwise overridden by more specific contexts.

[build]
# This is the directory that you are publishing from (relative to root of your repo)
  publish = "build/"
# default build command
  command = "npm run build:alpha"

# Production context: All deploys from the Production branch set in your site's deploy settings will inherit these settings.
[context.production]
  command = "npm run build"

# Specific branch context: Deploys from this branch
[context.beta]
  command = "npm run build:beta"

# Specific branch context: Deploys from this branch
[context.alpha]
  command = "npm run build:alpha"

# Branch Deploy context: All deploys that are not resulting from a Pull/Merge Request and not from the primary, linked branch will inherit these settings.
[context.deploy-preview]
  command = "npm run build:alpha"