Resolve full paths to referenced assemblies by name in MSBuild

build.targets

<Project>
    
    <Target Name="ResolveAssemblyPaths">
        <ItemGroup>
            <IncludeProjectReferencedAssemblyName Include="Serilog.Sinks.BepInEx" />
            <IncludePackageReferencedAssemblyName Include="Serilog" />
        </ItemGroup>

        <!-- ProjectReference assemblies -->
        <JoinItems
            Left="@(ReferencePath)"
            LeftKey="FileName"
            LeftMetadata="*"
            Right="@(IncludeProjectReferencedAssemblyName)"
            RightKey="Identity"
            ItemSpecToUse="Left"
        >
            <Output TaskParameter="JoinResult" ItemName="IncludeAssemblyPath" />
        </JoinItems>

        <!-- PackageReference assemblies -->
        <JoinItems
            Left="@(RuntimeCopyLocalItems)"
            LeftKey="FileName"
            LeftMetadata="*"
            Right="@(IncludePackageReferencedAssemblyName)"
            RightKey="Identity"
            ItemSpecToUse="Left"
        >
            <Output TaskParameter="JoinResult" ItemName="IncludeAssemblyPath" />
        </JoinItems>

        <Message Importance="high" Text="Resolved: @(IncludeAssemblyPath->'&quot;%(Identity)&quot;', ';&#10;')"/>
    </Target>
    
</Project>

This'll only work in dotnet SDK's build command atm, not Visual Studio, since Visual Studio's MSBuild is missing the JoinItems task