My oh-my-posh v3 theme!

ben.json

{
  "$schema": "https://raw.githubusercontent.com/JanDeDobbeleer/oh-my-posh/main/themes/schema.json",
  "final_space": false,
  "console_title": false,
  "blocks": [
    {
      "type": "prompt",
      "alignment": "left",
      "horizontal_offset": 0,
      "vertical_offset": 0,
      "segments": [
        {
          "type": "envvar",
          "style": "powerline",
          "foreground": "#007ACC",
          "background": "#000000",
          "properties": {
            "var_name": "oh_my_psversion",
            "postfix": " \uFCB5 ",
            "prefix": ""
          }
        },
        {
          "type": "root",
          "style": "powerline",
          "powerline_symbol": "",
          "invert_powerline": false,
          "foreground": "#100e23",
          "background": "#ffe9aa",
          "leading_diamond": "",
          "trailing_diamond": "",
          "properties": null
        },
        {
          "type": "envvar",
          "style": "powerline",
          "powerline_symbol": "\uE0B0",
          "foreground": "#ffffff",
          "background": "#0077c2",
          "properties": {
            "var_name": "oh_my_azure_context",
            "prefix": "\uFD03 "
          }
        },
        {
          "type": "kubectl",
          "style": "powerline",
          "powerline_symbol": "\uE0B0",
          "foreground": "#000000",
          "background": "#ebcc34",
          "properties": {
            "prefix": "\uFD31 ",
            "template": "{{.Context}}{{if .Namespace}} - {{.Namespace}}{{end}}"
          }
        },
        {
          "type": "path",
          "style": "powerline",
          "powerline_symbol": "",
          "invert_powerline": false,
          "foreground": "#100e23",
          "background": "#91ddff",
          "leading_diamond": "",
          "trailing_diamond": "",
          "properties": {
            "style": "folder",
            "prefix": "\uF115 ",
            "postfix": " "
          }
        },
        {
          "type": "git",
          "style": "powerline",
          "powerline_symbol": "",
          "invert_powerline": false,
          "foreground": "#193549",
          "background": "#95ffa4",
          "leading_diamond": "",
          "trailing_diamond": "",
          "properties": {
            "display_stash_count": true,
            "stash_count_icon": "\uF692 ",
            "prefix": ""
          }
        },
        {
          "type": "exit",
          "style": "powerline",
          "powerline_symbol": "",
          "invert_powerline": false,
          "foreground": "#ffffff",
          "background": "#ff8080",
          "leading_diamond": "",
          "trailing_diamond": "",
          "properties": null
        }
      ]
    },
    {
      "type": "newline"
    },
    {
      "type": "prompt",
      "alignment": "left",
      "segments": [
        {
          "type": "text",
          "style": "plain",
          "foreground": "#007ACC",
          "properties": {
            "prefix": "",
            "text": "\u276F"
          }
        }
      ]
    }
  ]
}

profile.ps1

#requires -Module Microsoft.PowerShell.UnixCompleters

$env:PATH = "/usr/local/opt/python/libexec/bin:/usr/local/opt/openjdk/bin:/Library/Application Support/Microsoft/MAU2.0/Microsoft AutoUpdate.app/Contents/MacOS:$env:PATH"

Set-PSReadLineOption -EditMode Emacs -BellStyle None -ExtraPromptLineCount 1 -PredictionSource History -Colors @{
  Selection = "`e[93m"
}
Set-PSReadLineKeyHandler -Chord Tab -Function MenuComplete
Set-PSReadLineKeyHandler -Key UpArrow -Function HistorySearchBackward
Set-PSReadLineKeyHandler -Key DownArrow -Function HistorySearchForward
Set-PSReadLineKeyHandler -Key 'Ctrl+f' -Function ForwardWord
Set-PSReadLineKeyHandler -Key 'Ctrl+z' -Function Undo
Set-PSReadLineOption -HistorySearchCursorMovesToEnd

function Set-EnvVar {
  if (Test-Path -Path ~/.Azure/AzureRmContext.json) {
    $azureContext = Get-Content ~/.Azure/AzureRmContext.json | ConvertFrom-Json
    $subscriptionName = $azureContext.Contexts.($azureContext.DefaultContextKey).Subscription.Name
    $env:oh_my_azure_context = $subscriptionName
  } else {
    $env:oh_my_azure_context = $null
  }

  $env:oh_my_psversion = ($PSVersionTable.PSVersion.ToString() -split '-')[0]
}
Set-PoshPrompt -Theme ~/.config/powershell/PoshThemes/ben.json
New-Alias -Name 'Set-PoshContext' -Value 'Set-EnvVar' -Scope Global

Font: Caskaydia Cove Nerd Font

brew tap homebrew/cask-fonts
brew cask install font-caskaydia-cove-nerd-font

Make sure you change the line in the profile where the theme is loaded to point to your path (note I got a report on Windows that the ~ did not work correctly so you might want to use a literal path):

Set-PoshPrompt -Theme ~\.config\powershell\themes\ben.json

And you need to install PSReadline prerelease as well!
Install-Module PSReadLine -AllowPrerelease -Force

Yes, for those settings indeed (copied a little bit too much profile :)) I'll leave it in there for reference