see https://www.alkanesolutions.co.uk/2023/05/03/what-is-an-msix-appx…

…manifest-xml/

.github/workflows/msbuild.yml

@@ -51,6 +51,7 @@ jobs:
         $MakeAppx_path = Get-ChildItem -Path "C:/Program Files (x86)/Windows Kits/10/bin/*/x64/MakeAppx.exe" | Select-Object -First 1 -ExpandProperty FullName
         Write-Output "MakeAppx path=$MakeAppx_path"
         mkdir -p ./x64/Release/Appx
+        cp ./AppxManifest.xml ./x64/Release/Appx/
         & "$MakeAppx_path" pack /d ./x64/Release /p ./x64/Release/Appx/WellTrajectoryCalculator.msix
       shell: pwsh
 

AppxManifest.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Package xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10"
+xmlns:mp="http://schemas.microsoft.com/appx/2014/phone/manifest"
+xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10"
+IgnorableNamespaces="uap mp">
+<Identity Name="Contoso.MyApp" Publisher="CN=01234567-89ab-cdef-0123-456789abcdef" Version="1.0.0.0" />
+<Properties>
+<DisplayName>My App</DisplayName>
+<PublisherDisplayName>Contoso, Inc.</PublisherDisplayName>
+<Description>A simple app for Windows</Description>
+<Logo>Assets\Logo.png</Logo>
+</Properties>
+<Dependencies>
+<TargetDeviceFamily Name="Windows.Desktop" MinVersion="10.0.14316.0" MaxVersionTested="10.0.19042.0" />
+</Dependencies>
+<Resources>
+<Resource Language="en-us" />
+</Resources>
+<Applications>
+<Application Id="App" Executable="WellTrajectoryCalculator.exe" EntryPoint="Windows.FullTrustApplication">
+<uap:VisualElements DisplayName="My App" Description="A simple app for Windows" Square150x150Logo="Assets\Square150x150Logo.png" Square44x44Logo="Assets\Square44x44Logo.png" />
+</Application>
+</Applications>
+</Package>