My PowerShell profile - uses a few modules such as PoshGit, oh-my-posh for customizing the PS prompt, and sources a few of my own modules and scripts. Somewhat developer-oriented. Usage instructions included.
Relies on a few modules - can be gotten with PowerShellGet. If PowerShellGet is not already on your system, see Installing PSGet
Either
New-Item -Path $PROFILE -ItemType SymbolicLink -Value (Get-Item .\Microsoft.PowerShell_profile.ps1).FullName