ptr727 · ptr727 · Apr 13, 2026 · Apr 13, 2026
diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
@@ -228,6 +228,18 @@ Available VS Code tasks (use via `run_task` tool):
    </ItemGroup>
    ```
 
+5. **Directory.Build.props**: Common MSBuild properties shared across all projects
+   (`TargetFramework`, `Nullable`, `ImplicitUsings`, `AnalysisLevel`, `AnalysisMode`,
+   `EnableNETAnalyzers`, `ArtifactsPath`, `IsPackable`, `ManagePackageVersionsCentrally`)
+   live here at the solution root. Only add a property to a `.csproj` when it is
+   specific to that project or requires an explicit override of the shared default.
+
+6. **Directory.Packages.props**: All NuGet package versions are centralised here via
+   `PackageVersion` items. Individual `.csproj` files use `PackageReference Include="..."`
+   with no `Version` attribute. Asset metadata (`PrivateAssets`, `IncludeAssets`) stays
+   in the `.csproj` `PackageReference` element. Use `VersionOverride` only when a project
+   genuinely requires a different version from the central default.
+
 ### Code Formatting Tools
 
 1. **CSharpier**: Primary code formatter

diff --git a/.github/workflows/run-periodic-codegen-app-pull-request.yml b/.github/workflows/run-periodic-codegen-app-pull-request.yml
@@ -1,23 +1,24 @@
-name: Run weekly CodeGen App and Pull Request action
-
-on:
-  workflow_dispatch:
-  schedule:
-    # Run weekly on Thursdays at 02:00 UTC (PAT workflow runs on Mondays)
-    - cron: '0 2 * * THU'
-
-concurrency:
-  group: codegen-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-
-  run-codegen-app:
-    name: Run codegen app and pull request job
-    uses: ./.github/workflows/run-codegen-app-pull-request-task.yml
-    secrets:
-      CODEGEN_APP_ID: ${{ secrets.CODEGEN_APP_ID }}
-      CODEGEN_APP_PRIVATE_KEY: ${{ secrets.CODEGEN_APP_PRIVATE_KEY }}
-    permissions:
-      contents: write
-      pull-requests: write
+name: Run weekly CodeGen App and Pull Request action
+
+on:
+  workflow_dispatch:
+  schedule:
+    # Run weekly on Thursdays at 02:00 UTC (PAT workflow runs on Mondays)
+    - cron: '0 2 * * THU'
+
+concurrency:
+  # Workflow always checks out and targets main/codegen
+  group: codegen-main
+  cancel-in-progress: true
+
+jobs:
+
+  run-codegen-app:
+    name: Run codegen app and pull request job
+    uses: ./.github/workflows/run-codegen-app-pull-request-task.yml
+    secrets:
+      CODEGEN_APP_ID: ${{ secrets.CODEGEN_APP_ID }}
+      CODEGEN_APP_PRIVATE_KEY: ${{ secrets.CODEGEN_APP_PRIVATE_KEY }}
+    permissions:
+      contents: write
+      pull-requests: write
diff --git a/.github/workflows/run-periodic-codegen-pull-request.yml b/.github/workflows/run-periodic-codegen-pull-request.yml
@@ -7,7 +7,8 @@ on:
     - cron: '0 2 * * MON'
 
 concurrency:
-  group: codegen-${{ github.ref }}
+  # Workflow always checks out and targets main/codegen
+  group: codegen-main
   cancel-in-progress: true
 
 jobs:

diff --git a/.vscode/launch.json b/.vscode/launch.json
@@ -1,51 +1,51 @@
-{
-    "version": "0.2.0",
-    "configurations": [
-        {
-            "name": "Console Root",
-            "type": "coreclr",
-            "request": "launch",
-            "preLaunchTask": ".Net Build",
-            "program": "${workspaceFolder}/Console/bin/Debug/net10.0/Console.dll",
-            "args": [
-                "--loglevel=Debug",
-                "--logfile=console.log",
-                "--logfile-clear=true"
-            ],
-            "cwd": "${workspaceFolder}/Console/bin/Debug/net10.0",
-            "console": "internalConsole",
-            "stopAtEntry": false
-        },
-        {
-            "name": "Console Test",
-            "type": "coreclr",
-            "request": "launch",
-            "preLaunchTask": ".Net Build",
-            "program": "${workspaceFolder}/Console/bin/Debug/net10.0/Console.dll",
-            "args": [
-                "--loglevel=Debug",
-                "--logfile=console.log",
-                "--logfile-clear=true",
-                "test",
-                "--test=test"
-            ],
-            "cwd": "${workspaceFolder}/Console/bin/Debug/net10.0",
-            "console": "internalConsole",
-            "stopAtEntry": false
-        },
-        {
-            "name": "CodeGen",
-            "type": "coreclr",
-            "request": "launch",
-            "preLaunchTask": ".Net Build",
-            "program": "${workspaceFolder}/CodeGen/bin/Debug/net10.0/CodeGen.dll",
-            "args": [
-                "--codepath",
-                "${workspaceFolder}/CodeGen"
-            ],
-            "cwd": "${workspaceFolder}/CodeGen/bin/Debug/net10.0",
-            "console": "internalConsole",
-            "stopAtEntry": false
-        }
-    ]
-}
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Console Root",
+            "type": "coreclr",
+            "request": "launch",
+            "preLaunchTask": ".Net Build",
+            "program": "${workspaceFolder}/.artifacts/bin/Console/Debug/Console.dll",
+            "args": [
+                "--loglevel=Debug",
+                "--logfile=console.log",
+                "--logfile-clear=true"
+            ],
+            "cwd": "${workspaceFolder}/.artifacts/bin/Console/Debug",
+            "console": "internalConsole",
+            "stopAtEntry": false
+        },
+        {
+            "name": "Console Test",
+            "type": "coreclr",
+            "request": "launch",
+            "preLaunchTask": ".Net Build",
+            "program": "${workspaceFolder}/.artifacts/bin/Console/Debug/Console.dll",
+            "args": [
+                "--loglevel=Debug",
+                "--logfile=console.log",
+                "--logfile-clear=true",
+                "test",
+                "--test=test"
+            ],
+            "cwd": "${workspaceFolder}/.artifacts/bin/Console/Debug",
+            "console": "internalConsole",
+            "stopAtEntry": false
+        },
+        {
+            "name": "CodeGen",
+            "type": "coreclr",
+            "request": "launch",
+            "preLaunchTask": ".Net Build",
+            "program": "${workspaceFolder}/.artifacts/bin/CodeGen/Debug/CodeGen.dll",
+            "args": [
+                "--codepath",
+                "${workspaceFolder}/CodeGen"
+            ],
+            "cwd": "${workspaceFolder}/.artifacts/bin/CodeGen/Debug",
+            "console": "internalConsole",
+            "stopAtEntry": false
+        }
+    ]
+}
diff --git a/.vscode/tasks.json b/.vscode/tasks.json
@@ -93,6 +93,28 @@
                 "clear": false
             }
         },
+        {
+            "label": ".Net Benchmark",
+            "type": "process",
+            "command": "dotnet",
+            "args": [
+                "run",
+                "--project",
+                "${workspaceFolder}/Benchmarks/Benchmarks.csproj",
+                "-c",
+                "Release",
+                "--",
+                "--artifacts",
+                "${workspaceFolder}/.artifacts/benchmarks"
+            ],
+            "problemMatcher": [
+                "$msCompile"
+            ],
+            "presentation": {
+                "showReuseMessage": false,
+                "clear": false
+            }
+        },
         {
             "label": ".Net Outdated Upgrade",
             "type": "process",

diff --git a/AGENTS.md b/AGENTS.md
@@ -24,6 +24,15 @@ For comprehensive coding standards and detailed conventions, refer to [`.github/
   - `<EnableNETAnalyzers>true</EnableNETAnalyzers>`
   - `<AnalysisLevel>latest-all</AnalysisLevel>`
 
+### Project Configuration
+
+- Common MSBuild properties (`TargetFramework`, `Nullable`, `ImplicitUsings`, `AnalysisLevel`, etc.)
+  live in `Directory.Build.props` at the solution root. Do not duplicate these in individual `.csproj`
+  files — only add a property to a `.csproj` when it is project-specific or overrides the shared default.
+- All NuGet package versions are centralised in `Directory.Packages.props`. `PackageReference` elements
+  in `.csproj` files must not include a `Version` attribute. Asset metadata (`PrivateAssets`,
+  `IncludeAssets`) stays in the `.csproj` `PackageReference` element.
+
 ### Development Environment
 
 - Target latest .NET SDK (currently .NET 10 with C# 14)

diff --git a/Benchmarks/Benchmarks.csproj b/Benchmarks/Benchmarks.csproj
@@ -1,15 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <AnalysisLevel>latest-all</AnalysisLevel>
-    <EnableNETAnalyzers>true</EnableNETAnalyzers>
-    <IsPackable>false</IsPackable>
-    <Nullable>enable</Nullable>
     <OutputType>Exe</OutputType>
     <RootNamespace>ptr727.ProjectTemplate.Benchmarks</RootNamespace>
-    <TargetFramework>net10.0</TargetFramework>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="BenchmarkDotNet" Version="0.15.8" />
+    <PackageReference Include="BenchmarkDotNet" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Library\Library.csproj" />

diff --git a/Benchmarks/GlobalUsings.cs b/Benchmarks/GlobalUsings.cs
@@ -1,3 +1,2 @@
-global using System;
 global using BenchmarkDotNet.Attributes;
 global using BenchmarkDotNet.Running;
diff --git a/CodeGen/CodeGen.cs b/CodeGen/CodeGen.cs
@@ -7,7 +7,7 @@ internal static class CodeGen
 
     internal static void Quote()
     {
-        const string dateTime = "2026-01-30T22:28:14.6290903Z";
+        const string dateTime = "2026-04-13T22:37:43.5686751Z";
         Console.WriteLine($"{dateTime} : {QuoteOfTheDay}");
         Log.Logger.Information("Quote of the Day: {DateTime} : {Quote}", dateTime, QuoteOfTheDay);
     }

diff --git a/CodeGen/CodeGen.csproj b/CodeGen/CodeGen.csproj
@@ -1,14 +1,9 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <AnalysisLevel>latest-all</AnalysisLevel>
-    <EnableNETAnalyzers>true</EnableNETAnalyzers>
     <InformationalVersion>1.0.0-pre</InformationalVersion>
-    <IsPackable>false</IsPackable>
-    <Nullable>enable</Nullable>
     <OutputType>Exe</OutputType>
     <PublishAot>false</PublishAot>
     <RootNamespace>ptr727.ProjectTemplate.CodeGen</RootNamespace>
-    <TargetFramework>net10.0</TargetFramework>
     <Version>1.0.0</Version>
   </PropertyGroup>
   <PropertyGroup Condition="'$(PublishAot)' == 'true'">
@@ -17,10 +12,10 @@
     <VerifyReferenceAotCompatibility>true</VerifyReferenceAotCompatibility>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="10.4.0" />
-    <PackageReference Include="Serilog.Enrichers.Thread" Version="4.0.0" />
-    <PackageReference Include="Serilog.Sinks.Console" Version="6.1.1" />
-    <PackageReference Include="Serilog" Version="4.3.1" />
-    <PackageReference Include="System.CommandLine" Version="2.0.5" />
+    <PackageReference Include="Microsoft.Extensions.Http.Resilience" />
+    <PackageReference Include="Serilog.Enrichers.Thread" />
+    <PackageReference Include="Serilog.Sinks.Console" />
+    <PackageReference Include="Serilog" />
+    <PackageReference Include="System.CommandLine" />
   </ItemGroup>
 </Project>
diff --git a/CodeGen/GlobalUsings.cs b/CodeGen/GlobalUsings.cs
@@ -1,9 +1,3 @@
-global using System;
 global using System.Collections.Frozen;
 global using System.Globalization;
-global using System.IO;
-global using System.Linq;
-global using System.Net.Http;
-global using System.Threading;
-global using System.Threading.Tasks;
 global using Serilog;
diff --git a/Console/Console.csproj b/Console/Console.csproj
@@ -1,14 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <AnalysisLevel>latest-all</AnalysisLevel>
-    <EnableNETAnalyzers>true</EnableNETAnalyzers>
     <InformationalVersion>1.0.0-pre</InformationalVersion>
-    <IsPackable>false</IsPackable>
-    <Nullable>enable</Nullable>
     <OutputType>Exe</OutputType>
     <PublishAot>false</PublishAot>
     <RootNamespace>ptr727.ProjectTemplate.Console</RootNamespace>
-    <TargetFramework>net10.0</TargetFramework>
     <Version>1.0.0</Version>
   </PropertyGroup>
   <PropertyGroup Condition="'$(PublishAot)' == 'true'">
@@ -17,13 +12,13 @@
     <VerifyReferenceAotCompatibility>true</VerifyReferenceAotCompatibility>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.5" />
-    <PackageReference Include="Serilog.Enrichers.Thread" Version="4.0.0" />
-    <PackageReference Include="Serilog.Extensions.Logging" Version="10.0.0" />
-    <PackageReference Include="Serilog.Sinks.Console" Version="6.1.1" />
-    <PackageReference Include="Serilog.Sinks.File" Version="7.0.0" />
-    <PackageReference Include="Serilog" Version="4.3.1" />
-    <PackageReference Include="System.CommandLine" Version="2.0.5" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" />
+    <PackageReference Include="Serilog.Enrichers.Thread" />
+    <PackageReference Include="Serilog.Extensions.Logging" />
+    <PackageReference Include="Serilog.Sinks.Console" />
+    <PackageReference Include="Serilog.Sinks.File" />
+    <PackageReference Include="Serilog" />
+    <PackageReference Include="System.CommandLine" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\Library\Library.csproj" />

diff --git a/Console/GlobalUsings.cs b/Console/GlobalUsings.cs
@@ -1,10 +1,5 @@
-global using System;
 global using System.Collections.Frozen;
 global using System.Globalization;
-global using System.IO;
-global using System.Linq;
-global using System.Threading;
-global using System.Threading.Tasks;
 global using Microsoft.Extensions.Logging;
 global using Serilog;
 global using Serilog.Events;
diff --git a/Directory.Build.props b/Directory.Build.props
@@ -0,0 +1,14 @@
+<Project>
+  <PropertyGroup>
+    <TargetFramework>net10.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <AnalysisLevel>latest-all</AnalysisLevel>
+    <AnalysisMode>All</AnalysisMode>
+    <EnableNETAnalyzers>true</EnableNETAnalyzers>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+    <ArtifactsPath>$(MSBuildThisFileDirectory).artifacts</ArtifactsPath>
+    <IsPackable>false</IsPackable>
+    <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
+  </PropertyGroup>
+</Project>
diff --git a/Directory.Packages.props b/Directory.Packages.props
@@ -0,0 +1,19 @@
+<Project>
+  <ItemGroup>
+    <PackageVersion Include="AwesomeAssertions" Version="9.4.0" />
+    <PackageVersion Include="BenchmarkDotNet" Version="0.15.8" />
+    <PackageVersion Include="Microsoft.Extensions.Http.Resilience" Version="10.4.0" />
+    <PackageVersion Include="Microsoft.Extensions.Logging.Abstractions" Version="10.0.5" />
+    <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
+    <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="10.0.201" />
+    <PackageVersion Include="Serilog" Version="4.3.1" />
+    <PackageVersion Include="Serilog.Enrichers.Thread" Version="4.0.0" />
+    <PackageVersion Include="Serilog.Extensions.Logging" Version="10.0.0" />
+    <PackageVersion Include="Serilog.Sinks.Console" Version="6.1.1" />
+    <PackageVersion Include="Serilog.Sinks.File" Version="7.0.0" />
+    <PackageVersion Include="System.CommandLine" Version="2.0.5" />
+    <PackageVersion Include="xunit.analyzers" Version="1.27.0" />
+    <PackageVersion Include="xunit.runner.visualstudio" Version="3.1.5" />
+    <PackageVersion Include="xunit.v3" Version="3.2.2" />
+  </ItemGroup>
+</Project>
diff --git a/Library/GlobalUsings.cs b/Library/GlobalUsings.cs
@@ -1,3 +1,2 @@
-global using System;
 global using Microsoft.Extensions.Logging;
 global using Microsoft.Extensions.Logging.Abstractions;