Integrate Iseberg as a native PowerShell ISE profile

.github/workflows/build-terminal.yml

@@ -155,13 +155,32 @@ jobs:
           dotnet-version: 10.0.x
 
       - name: Restore
-        run: dotnet restore Devolutions.Terminal.slnx -p:VersionPrefix=${{ needs.release-metadata.outputs.release_version }}
+        run: dotnet restore Devolutions.Terminal.slnx -p:Configuration=Release -p:EnablePowerShellIse=true -p:VersionPrefix=${{ needs.release-metadata.outputs.release_version }}
 
       - name: Build
-        run: dotnet build Devolutions.Terminal.slnx -c Release --no-restore -p:VersionPrefix=${{ needs.release-metadata.outputs.release_version }}
+        run: dotnet build Devolutions.Terminal.slnx -c Release --no-restore -p:EnablePowerShellIse=true -p:VersionPrefix=${{ needs.release-metadata.outputs.release_version }}
 
       - name: Test
-        run: dotnet test Devolutions.Terminal.slnx -c Release --no-build -p:VersionPrefix=${{ needs.release-metadata.outputs.release_version }}
+        # Engine tests resolve the separately installed runtime; it is not a DT package payload.
+        run: pwsh -NoLogo -NoProfile -File scripts/Install-IsebergTestPowerShell.ps1
+
+      - name: Run tests
+        timeout-minutes: 60
+        run: >-
+          dotnet test Devolutions.Terminal.slnx -c Release --no-build -m:1
+          -p:EnablePowerShellIse=true -p:VersionPrefix=${{ needs.release-metadata.outputs.release_version }}
+          --logger "console;verbosity=normal" --logger trx
+          --results-directory artifacts/test-results/windows
+          --blame-hang --blame-hang-timeout 5min --blame-hang-dump-type none
+
+      - name: Upload Windows test diagnostics
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: windows-test-diagnostics
+          path: artifacts/test-results/windows
+          if-no-files-found: ignore
+          retention-days: 7
 
       - name: Test macOS legal notice layout
         run: pwsh -NoLogo -NoProfile -File scripts/Test-MacOsLegalNotices.ps1
@@ -212,7 +231,7 @@ jobs:
           if-no-files-found: error
 
   native-aot:
-    name: NativeAOT ${{ matrix.rid }}
+    name: NativeAOT desktop ${{ matrix.rid }}
     runs-on: windows-latest
     needs: release-metadata
     strategy:
@@ -241,16 +260,28 @@ jobs:
         with:
           dotnet-version: 10.0.x
 
-      - name: Publish
+      - name: Publish NativeAOT desktop
         run: >
           dotnet publish src/Devolutions.Terminal/Devolutions.Terminal.csproj
           -c Release
           -r ${{ matrix.rid }}
           --self-contained
+          -p:EnablePowerShellIse=false
+          -p:PublishAot=true
           -p:VersionPrefix=${{ needs.release-metadata.outputs.release_version }}
           -o artifacts/${{ matrix.rid }}
 
-      - name: Upload native executable
+      - name: Check opt-in managed Iseberg desktop
+        run: >
+          dotnet publish src/Devolutions.Terminal/Devolutions.Terminal.csproj
+          -c Release
+          -r ${{ matrix.rid }}
+          --self-contained
+          -p:EnablePowerShellIse=true
+          -p:VersionPrefix=${{ needs.release-metadata.outputs.release_version }}
+          -o artifacts/iseberg-validation/${{ matrix.rid }}
+
+      - name: Upload NativeAOT desktop
         uses: actions/upload-artifact@v4
         with:
           name: DevolutionsTerminal-${{ matrix.rid }}
@@ -282,10 +313,13 @@ jobs:
           dotnet-version: 10.0.x
 
       - name: Restore
-        run: dotnet restore Devolutions.Terminal.slnx -p:VersionPrefix=${{ needs.release-metadata.outputs.release_version }}
+        run: dotnet restore Devolutions.Terminal.slnx -p:Configuration=Release -p:EnablePowerShellIse=true -p:VersionPrefix=${{ needs.release-metadata.outputs.release_version }}
 
       - name: Run managed tests
-        run: dotnet test Devolutions.Terminal.slnx -c Release --no-restore -p:VersionPrefix=${{ needs.release-metadata.outputs.release_version }}
+        run: pwsh -NoLogo -NoProfile -File scripts/Install-IsebergTestPowerShell.ps1
+
+      - name: Test managed projects
+        run: dotnet test Devolutions.Terminal.slnx -c Release --no-restore -p:EnablePowerShellIse=true -p:VersionPrefix=${{ needs.release-metadata.outputs.release_version }}
 
       - name: Validate Linux scripts and metadata
         run: bash scripts/Test-LinuxPackagingMetadata.sh
@@ -315,10 +349,13 @@ jobs:
           dotnet-version: 10.0.x
 
       - name: Restore
-        run: dotnet restore Devolutions.Terminal.slnx -p:VersionPrefix=${{ needs.release-metadata.outputs.release_version }}
+        run: dotnet restore Devolutions.Terminal.slnx -p:Configuration=Release -p:EnablePowerShellIse=true -p:VersionPrefix=${{ needs.release-metadata.outputs.release_version }}
 
       - name: Run managed tests
-        run: dotnet test Devolutions.Terminal.slnx -c Release --no-restore -p:VersionPrefix=${{ needs.release-metadata.outputs.release_version }}
+        run: pwsh -NoLogo -NoProfile -File scripts/Install-IsebergTestPowerShell.ps1
+
+      - name: Test managed projects
+        run: dotnet test Devolutions.Terminal.slnx -c Release --no-restore -p:EnablePowerShellIse=true -p:VersionPrefix=${{ needs.release-metadata.outputs.release_version }}
 
       - name: Validate macOS scripts and metadata
         run: pwsh -NoLogo -NoProfile -File scripts/Test-MacOsPackagingMetadata.ps1
@@ -333,7 +370,7 @@ jobs:
         run: pwsh -NoLogo -NoProfile -File scripts/Test-MacOsNuGetSigning.ps1
 
   macos-native-aot:
-    name: macOS NativeAOT ${{ matrix.rid }}
+    name: macOS NativeAOT desktop ${{ matrix.rid }}
     runs-on: macos-26
     needs:
       - macos-managed
@@ -364,19 +401,21 @@ jobs:
         with:
           dotnet-version: 10.0.x
 
-      - name: NativeAOT publish
+      - name: NativeAOT desktop publish
         run: >
           dotnet publish src/Devolutions.Terminal/Devolutions.Terminal.csproj
           -c Release
           -r ${{ matrix.rid }}
           --self-contained true
+          -p:EnablePowerShellIse=false
+          -p:PublishAot=true
           -p:VersionPrefix=${{ needs.release-metadata.outputs.release_version }}
           -p:DebugSymbols=false
           -p:DebugType=None
           -p:NativeDebugSymbols=false
           -o artifacts/publish/${{ matrix.rid }}
 
-      - name: Upload macOS NativeAOT publish
+      - name: Upload macOS desktop publish
         uses: actions/upload-artifact@v4
         with:
           name: DevolutionsTerminal-${{ matrix.rid }}
@@ -649,14 +688,16 @@ jobs:
             throw "Runtime hash mismatch: expected ${{ matrix.runtime_sha256 }}, got $actualHash."
           }
 
-      - name: NativeAOT publish
+      - name: NativeAOT desktop publish
         shell: pwsh
         run: |
           $publishArgs = @(
             "src/Devolutions.Terminal/Devolutions.Terminal.csproj",
             "-c", "Release",
             "-r", "${{ matrix.rid }}",
             "--self-contained", "true",
+            "-p:EnablePowerShellIse=false",
+            "-p:PublishAot=true",
             "-p:VersionPrefix=${{ needs.release-metadata.outputs.release_version }}",
             "-p:DebugSymbols=false",
             "-p:DebugType=None",
@@ -668,7 +709,7 @@ jobs:
           }
           dotnet publish @publishArgs
 
-      - name: Upload Linux NativeAOT publish
+      - name: Upload Linux desktop publish
         uses: actions/upload-artifact@v4
         with:
           name: DevolutionsTerminal-${{ matrix.rid }}

CONTRIBUTING.md

@@ -22,14 +22,22 @@ as a tab on `/pty/{id}` (`ws` on this HTTP host, `wss` when the page is HTTPS).
 The browser never supplies a command line, and the host does not send one back.
 Elevated profiles are listed and refused.
 
-Warnings are errors. Prefer small, reviewable changes that keep NativeAOT publish green.
+Warnings are errors. Keep the default NativeAOT desktop publish green.
+Iseberg is disabled by default; its managed developer build and regression suite
+require `-p:EnablePowerShellIse=true`. See [Iseberg](docs/iseberg.md) for the
+installed-engine boundary.
 
-## NativeAOT
+## Desktop publish
 
 ```powershell
 dotnet publish src/Devolutions.Terminal -c Release -r win-x64 --self-contained
 ```
 
+The default desktop and release packages use NativeAOT and exclude Iseberg.
+Add `-p:EnablePowerShellIse=true` only for an optional managed, untrimmed
+Iseberg developer build. Use the same flag for restore/build/test/run commands
+when working on Iseberg. The CLI remains NativeAOT in both variants.
+
 Linux packages:
 
 ```bash

Devolutions.Terminal.slnx

@@ -16,6 +16,11 @@
     <Project Path="src/Devolutions.Terminal.Settings.Editor/Devolutions.Terminal.Settings.Editor.csproj" />
     <Project Path="src/Devolutions.Terminal/Devolutions.Terminal.csproj" />
   </Folder>
+  <Folder Name="/src/Devolutions.Terminal.Ise/">
+    <Project Path="src/Devolutions.Terminal.Ise/Iseberg.Core/Iseberg.Core.csproj" />
+    <Project Path="src/Devolutions.Terminal.Ise/Iseberg.Editor/Iseberg.Editor.csproj" />
+    <Project Path="src/Devolutions.Terminal.Ise/Iseberg/Iseberg.csproj" />
+  </Folder>
   <Folder Name="/tests/">
     <Project Path="tests/Devolutions.Terminal.Connection.Tests/Devolutions.Terminal.Connection.Tests.csproj" />
     <Project Path="tests/Devolutions.Terminal.Control.Tests/Devolutions.Terminal.Control.Tests.csproj" />

Directory.Build.props

@@ -18,6 +18,7 @@
     <InvariantGlobalization>false</InvariantGlobalization>
     <NuGetAudit>true</NuGetAudit>
     <NuGetAuditMode>direct</NuGetAuditMode>
+    <EnablePowerShellIse Condition="'$(EnablePowerShellIse)' == ''">false</EnablePowerShellIse>
     <DevolutionsTerminalWindowsIcon>$(MSBuildThisFileDirectory)assets\icons\terminal.ico</DevolutionsTerminalWindowsIcon>
   </PropertyGroup>
 </Project>

Directory.Packages.props

@@ -11,6 +11,8 @@
     <PackageVersion Include="Avalonia.Headless.XUnit" Version="12.1.1" />
     <PackageVersion Include="Avalonia.Skia" Version="12.1.1" />
     <PackageVersion Include="AvaloniaUI.DiagnosticsSupport" Version="2.2.3" />
+    <PackageVersion Include="Avalonia.AvaloniaEdit" Version="12.0.0" />
+    <PackageVersion Include="Microsoft.PowerShell.SDK" Version="7.6.6" />
     <PackageVersion Include="SkiaSharp" Version="3.119.4" />
     <PackageVersion Include="SkiaSharp.HarfBuzz" Version="3.119.4" />
     <PackageVersion Include="SkiaSharp.NativeAssets.Linux" Version="3.119.4" />

README.md

@@ -1,12 +1,14 @@
 # Devolutions Terminal
 
 A cross-platform terminal emulator implemented in C# on **.NET 10**, published
-with **NativeAOT**, and rendered with **Avalonia 12** / Skia:
+as a self-contained **NativeAOT** desktop app, and rendered with **Avalonia 12** / Skia:
 
 - **ConPTY** on Windows and a real **forkpty** transport on Linux and macOS
 - Azure Cloud Shell for remote Azure sessions
 - selectable built-in or **Ghostty** VT engine
 - Windows Terminal-compatible `settings.json`, actions, keybindings, and `dt` CLI
+- optional source-integrated **Iseberg** PowerShell ISE profiles in managed
+  developer builds only (disabled in default NativeAOT builds and release packages)
 
 This is the [Devolutions Terminal](https://github.com/Devolutions/devolutions-terminal)
 source tree. Projects, namespaces, and the GUI host use `Devolutions.Terminal.*`.
@@ -29,23 +31,29 @@ Install [gsudo](https://gerardog.github.io/gsudo/) and ensure `gsudo.exe` is on
 Elevation is only available for local Windows sessions; UAC approval is still
 required, and cancelling it does not launch an unelevated shell.
 
-## NativeAOT publish
+## Desktop publish
 
 ```powershell
 dotnet publish src/Devolutions.Terminal -c Release -r win-x64 --self-contained
 ```
 
-The native executable is written to
+The executable is written to
 `src/Devolutions.Terminal/bin/Release/net10.0/win-x64/publish/Devolutions.Terminal.exe`.
 
-macOS NativeAOT app bundles (Darwin only):
+The default desktop and `dt` CLI are NativeAOT. Release packages exclude Iseberg.
+An explicitly opted-in `-p:EnablePowerShellIse=true` developer build uses a
+managed, untrimmed desktop and separately installed compatible PowerShell; see
+[docs/iseberg.md](docs/iseberg.md). Saved Iseberg profiles remain intact, but
+cannot launch in the default build.
+
+macOS app bundles (Darwin only):
 
 ```bash
 pwsh scripts/Build-MacOsPackage.ps1 osx-arm64 2026.3.0 artifacts/packages
 pwsh scripts/Test-MacOsPackage.ps1 osx-arm64 artifacts/packages/*.zip
 ```
 
-Linux x64 and ARM64 NativeAOT packages are built on Linux with:
+Linux x64 and ARM64 packages are built on Linux with:
 
 ```bash
 scripts/Build-LinuxPackage.sh linux-x64 2026.3.0 artifacts/packages all
@@ -113,7 +121,8 @@ Devolutions.Terminal.Connection   ConPTY + Linux PTY + Azure Cloud Shell + brows
 Devolutions.Terminal.Settings     Layered Windows Terminal-compatible JSON settings
 Devolutions.Terminal.Control      Avalonia TermControl renderer
 Devolutions.Terminal.App   Tabs, title bar, panes, actions, window behavior
-Devolutions.Terminal       NativeAOT executable and composition root
+Devolutions.Terminal.Ise   Imported Iseberg engine, editor and embedded workbench
+Devolutions.Terminal       Desktop executable and composition root
 Devolutions.Terminal.Browser      Avalonia WebAssembly host (in-process dt-wasm shell)
 Devolutions.Terminal.Browser.Host Loopback server for profile tabs and a real PTY
 ```