diff --git a/docs/generated/packages/angular.json b/docs/generated/packages/angular.json
index 812a4f0e52..d9ed7888d8 100644
--- a/docs/generated/packages/angular.json
+++ b/docs/generated/packages/angular.json
@@ -3414,6 +3414,306 @@
       "hidden": false,
       "path": "/packages/angular/src/builders/webpack-dev-server/schema.json"
     },
+    {
+      "name": "webpack-server",
+      "implementation": "/packages/angular/src/builders/webpack-server/webpack-server.impl.ts",
+      "schema": {
+        "version": 2,
+        "outputCapture": "direct-nodejs",
+        "$schema": "http://json-schema.org/draft-07/schema",
+        "title": "Schema for Webpack Server",
+        "description": "The webpack-dev-server executor is very similar to the standard server builder provided by the Angular Devkit. It is usually used in tandem with `@nrwl/angular:webpack-browser` when your Angular application uses a custom webpack configuration and NgUniversal for SSR.",
+        "type": "object",
+        "properties": {
+          "main": {
+            "type": "string",
+            "description": "The full path for the main entry point to the server app, relative to the current workspace."
+          },
+          "tsConfig": {
+            "type": "string",
+            "default": "tsconfig.app.json",
+            "description": "The full path for the TypeScript configuration file, relative to the current workspace."
+          },
+          "inlineStyleLanguage": {
+            "description": "The stylesheet language to use for the application's inline component styles.",
+            "type": "string",
+            "default": "css",
+            "enum": ["css", "less", "sass", "scss"]
+          },
+          "stylePreprocessorOptions": {
+            "description": "Options to pass to style preprocessors",
+            "type": "object",
+            "properties": {
+              "includePaths": {
+                "description": "Paths to include. Paths will be resolved to project root.",
+                "type": "array",
+                "items": { "type": "string" },
+                "default": []
+              }
+            },
+            "additionalProperties": false
+          },
+          "optimization": {
+            "description": "Enables optimization of the build output. Including minification of scripts and styles, tree-shaking and dead-code elimination. For more information, see https://angular.io/guide/workspace-config#optimization-configuration.",
+            "default": true,
+            "x-user-analytics": "ep.ng_optimization",
+            "oneOf": [
+              {
+                "type": "object",
+                "properties": {
+                  "scripts": {
+                    "type": "boolean",
+                    "description": "Enables optimization of the scripts output.",
+                    "default": true
+                  },
+                  "styles": {
+                    "type": "boolean",
+                    "description": "Enables optimization of the styles output.",
+                    "default": true
+                  }
+                },
+                "additionalProperties": false
+              },
+              { "type": "boolean" }
+            ]
+          },
+          "fileReplacements": {
+            "description": "Replace compilation source files with other compilation source files in the build.",
+            "type": "array",
+            "items": {
+              "oneOf": [
+                {
+                  "type": "object",
+                  "properties": {
+                    "src": {
+                      "type": "string",
+                      "pattern": "\\.(([cm]?j|t)sx?|json)$"
+                    },
+                    "replaceWith": {
+                      "type": "string",
+                      "pattern": "\\.(([cm]?j|t)sx?|json)$"
+                    }
+                  },
+                  "additionalProperties": false,
+                  "required": ["src", "replaceWith"]
+                },
+                {
+                  "type": "object",
+                  "properties": {
+                    "replace": {
+                      "type": "string",
+                      "pattern": "\\.(([cm]?j|t)sx?|json)$"
+                    },
+                    "with": {
+                      "type": "string",
+                      "pattern": "\\.(([cm]?j|t)sx?|json)$"
+                    }
+                  },
+                  "additionalProperties": false,
+                  "required": ["replace", "with"]
+                }
+              ]
+            },
+            "default": []
+          },
+          "outputPath": {
+            "type": "string",
+            "description": "The full path for the new output directory, relative to the current workspace.\n\nBy default, writes output to a folder named dist/ in the current project."
+          },
+          "resourcesOutputPath": {
+            "type": "string",
+            "description": "The path where style resources will be placed, relative to outputPath."
+          },
+          "sourceMap": {
+            "description": "Output source maps for scripts and styles. For more information, see https://angular.io/guide/workspace-config#source-map-configuration.",
+            "default": false,
+            "oneOf": [
+              {
+                "type": "object",
+                "properties": {
+                  "scripts": {
+                    "type": "boolean",
+                    "description": "Output source maps for all scripts.",
+                    "default": true
+                  },
+                  "styles": {
+                    "type": "boolean",
+                    "description": "Output source maps for all styles.",
+                    "default": true
+                  },
+                  "hidden": {
+                    "type": "boolean",
+                    "description": "Output source maps used for error reporting tools.",
+                    "default": false
+                  },
+                  "vendor": {
+                    "type": "boolean",
+                    "description": "Resolve vendor packages source maps.",
+                    "default": false
+                  }
+                },
+                "additionalProperties": false
+              },
+              { "type": "boolean" }
+            ]
+          },
+          "deployUrl": {
+            "type": "string",
+            "description": "URL where files will be deployed.",
+            "x-deprecated": "Use \"baseHref\" browser builder option, \"APP_BASE_HREF\" DI token or a combination of both instead. For more information, see https://angular.io/guide/deployment#the-deploy-url."
+          },
+          "verbose": {
+            "type": "boolean",
+            "description": "Adds more details to output logging.",
+            "default": false
+          },
+          "progress": {
+            "type": "boolean",
+            "description": "Log progress to the console while building.",
+            "default": true
+          },
+          "i18nMissingTranslation": {
+            "type": "string",
+            "description": "How to handle missing translations for i18n.",
+            "enum": ["warning", "error", "ignore"],
+            "default": "warning"
+          },
+          "i18nDuplicateTranslation": {
+            "type": "string",
+            "description": "How to handle duplicate translations for i18n.",
+            "enum": ["warning", "error", "ignore"],
+            "default": "warning"
+          },
+          "localize": {
+            "description": "Translate the bundles in one or more locales.",
+            "oneOf": [
+              { "type": "boolean", "description": "Translate all locales." },
+              {
+                "type": "array",
+                "description": "List of locales ID's to translate.",
+                "minItems": 1,
+                "items": {
+                  "type": "string",
+                  "pattern": "^[a-zA-Z]{2,3}(-[a-zA-Z]{4})?(-([a-zA-Z]{2}|[0-9]{3}))?(-[a-zA-Z]{5,8})?(-x(-[a-zA-Z0-9]{1,8})+)?$"
+                }
+              }
+            ]
+          },
+          "outputHashing": {
+            "type": "string",
+            "description": "Define the output filename cache-busting hashing mode.",
+            "default": "none",
+            "enum": ["none", "all", "media", "bundles"]
+          },
+          "deleteOutputPath": {
+            "type": "boolean",
+            "description": "Delete the output path before building.",
+            "default": true
+          },
+          "preserveSymlinks": {
+            "type": "boolean",
+            "description": "Do not use the real path when resolving modules. If unset then will default to `true` if NodeJS option --preserve-symlinks is set."
+          },
+          "extractLicenses": {
+            "type": "boolean",
+            "description": "Extract all licenses in a separate file, in the case of production builds only.",
+            "default": true
+          },
+          "namedChunks": {
+            "type": "boolean",
+            "description": "Use file name for lazy loaded chunks.",
+            "default": false
+          },
+          "externalDependencies": {
+            "description": "Exclude the listed external dependencies from being bundled into the bundle. Instead, the created bundle relies on these dependencies to be available during runtime.",
+            "type": "array",
+            "items": { "type": "string" },
+            "default": []
+          },
+          "bundleDependencies": {
+            "description": "Which external dependencies to bundle into the bundle. By default, all of node_modules will be bundled.",
+            "default": true,
+            "oneOf": [
+              { "type": "boolean" },
+              { "type": "string", "enum": ["none", "all"] }
+            ]
+          },
+          "statsJson": {
+            "type": "boolean",
+            "description": "Generates a 'stats.json' file which can be analyzed using tools such as 'webpack-bundle-analyzer'.",
+            "default": false
+          },
+          "watch": {
+            "type": "boolean",
+            "description": "Run build when files change.",
+            "default": false
+          },
+          "poll": {
+            "type": "number",
+            "description": "Enable and define the file watching poll time period in milliseconds."
+          },
+          "customWebpackConfig": {
+            "description": "Options for additional webpack configurations.",
+            "type": "object",
+            "properties": {
+              "path": {
+                "description": "Path to additional webpack configuration, relative to the workspace root.",
+                "type": "string"
+              }
+            },
+            "additionalProperties": false
+          },
+          "buildLibsFromSource": {
+            "type": "boolean",
+            "description": "Read buildable libraries from source instead of building them separately.",
+            "default": true
+          }
+        },
+        "additionalProperties": false,
+        "required": ["outputPath", "main", "tsConfig"],
+        "definitions": {
+          "fileReplacement": {
+            "oneOf": [
+              {
+                "type": "object",
+                "properties": {
+                  "src": {
+                    "type": "string",
+                    "pattern": "\\.(([cm]?j|t)sx?|json)$"
+                  },
+                  "replaceWith": {
+                    "type": "string",
+                    "pattern": "\\.(([cm]?j|t)sx?|json)$"
+                  }
+                },
+                "additionalProperties": false,
+                "required": ["src", "replaceWith"]
+              },
+              {
+                "type": "object",
+                "properties": {
+                  "replace": {
+                    "type": "string",
+                    "pattern": "\\.(([cm]?j|t)sx?|json)$"
+                  },
+                  "with": {
+                    "type": "string",
+                    "pattern": "\\.(([cm]?j|t)sx?|json)$"
+                  }
+                },
+                "additionalProperties": false,
+                "required": ["replace", "with"]
+              }
+            ]
+          }
+        },
+        "presets": []
+      },
+      "description": "The `webpack-server` executor is very similar to the standard `server` builder provided by the Angular Devkit. It is usually used in tandem with `@nrwl/angular:webpack-browser` when your Angular application uses a custom webpack configuration and NgUniversal for SSR.",
+      "aliases": [],
+      "hidden": false,
+      "path": "/packages/angular/src/builders/webpack-server/schema.json"
+    },
     {
       "name": "module-federation-dev-server",
       "implementation": "/packages/angular/src/builders/module-federation-dev-server/module-federation-dev-server.impl.ts",
diff --git a/docs/packages.json b/docs/packages.json
index 04058e7ad7..a0a7824a0d 100644
--- a/docs/packages.json
+++ b/docs/packages.json
@@ -18,6 +18,7 @@
         "package",
         "webpack-browser",
         "webpack-dev-server",
+        "webpack-server",
         "module-federation-dev-server",
         "file-server"
       ],
diff --git a/e2e/angular-core/src/projects.test.ts b/e2e/angular-core/src/projects.test.ts
index 9b519c470a..ce90019b6f 100644
--- a/e2e/angular-core/src/projects.test.ts
+++ b/e2e/angular-core/src/projects.test.ts
@@ -362,4 +362,39 @@ describe('Angular Projects', () => {
     // ASSERT
     expect(buildOutput).toContain('Successfully ran target build');
   }, 300000);
+
+  it('Custom Webpack Config for SSR - should serve the app correctly', async () => {
+    // ARRANGE
+    const ssrApp = uniq('app');
+
+    runCLI(`generate @nrwl/angular:app ${ssrApp} --no-interactive`);
+    runCLI(`generate @nrwl/angular:setup-ssr ${ssrApp} --no-interactive`);
+
+    updateProjectConfig(ssrApp, (project) => {
+      project.targets.server.executor = '@nrwl/angular:webpack-server';
+      return project;
+    });
+
+    // ACT
+    let process: ChildProcess;
+
+    try {
+      process = await runCommandUntil(`serve-ssr ${ssrApp}`, (output) => {
+        return output.includes(
+          `Angular Universal Live Development Server is listening on http://localhost:4200`
+        );
+      });
+    } catch (err) {
+      console.error(err);
+    }
+
+    // port and process cleanup
+    try {
+      if (process && process.pid) {
+        await promisifiedTreeKill(process.pid, 'SIGKILL');
+      }
+    } catch (err) {
+      expect(err).toBeFalsy();
+    }
+  }, 300000);
 });
diff --git a/packages/angular/executors.json b/packages/angular/executors.json
index 584473d7ba..cf942f5e76 100644
--- a/packages/angular/executors.json
+++ b/packages/angular/executors.json
@@ -25,6 +25,11 @@
       "schema": "./src/builders/webpack-dev-server/schema.json",
       "description": "The `webpack-dev-server` executor is very similar to the standard `dev-server` builder provided by the Angular Devkit. It is usually used in tandem with `@nrwl/angular:webpack-browser` when your Angular application uses a custom webpack configuration."
     },
+    "webpack-server": {
+      "implementation": "./src/builders/webpack-server/webpack-server.impl",
+      "schema": "./src/builders/webpack-server/schema.json",
+      "description": "The `webpack-server` executor is very similar to the standard `server` builder provided by the Angular Devkit. It is usually used in tandem with `@nrwl/angular:webpack-browser` when your Angular application uses a custom webpack configuration and NgUniversal for SSR."
+    },
     "module-federation-dev-server": {
       "implementation": "./src/builders/module-federation-dev-server/module-federation-dev-server.impl",
       "schema": "./src/builders/module-federation-dev-server/schema.json",
@@ -62,6 +67,11 @@
       "schema": "./src/builders/webpack-dev-server/schema.json",
       "description": "The `webpack-dev-server` executor is very similar to the standard `dev-server` builder provided by the Angular Devkit. It is usually used in tandem with `@nrwl/angular:webpack-browser` when your Angular application uses a custom webpack configuration."
     },
+    "webpack-server": {
+      "implementation": "./src/builders/webpack-server/webpack-server.impl",
+      "schema": "./src/builders/webpack-server/schema.json",
+      "description": "The `webpack-server` executor is very similar to the standard `server` builder provided by the Angular Devkit. It is usually used in tandem with `@nrwl/angular:webpack-browser` when your Angular application uses a custom webpack configuration and NgUniversal for SSR."
+    },
     "module-federation-dev-server": {
       "implementation": "./src/builders/module-federation-dev-server/module-federation-dev-server.impl",
       "schema": "./src/builders/module-federation-dev-server/schema.json",
diff --git a/packages/angular/executors.ts b/packages/angular/executors.ts
index 1838c04267..300f451e56 100644
--- a/packages/angular/executors.ts
+++ b/packages/angular/executors.ts
@@ -1,6 +1,7 @@
 export * from './src/builders/module-federation-dev-server/module-federation-dev-server.impl';
 export * from './src/builders/webpack-browser/webpack-browser.impl';
 export * from './src/builders/webpack-dev-server/webpack-dev-server.impl';
+export * from './src/builders/webpack-server/webpack-server.impl';
 export * from './src/executors/delegate-build/delegate-build.impl';
 export * from './src/executors/ng-packagr-lite/ng-packagr-lite.impl';
 export * from './src/executors/package/package.impl';
diff --git a/packages/angular/src/builders/webpack-server/schema.d.ts b/packages/angular/src/builders/webpack-server/schema.d.ts
new file mode 100644
index 0000000000..f326840b9c
--- /dev/null
+++ b/packages/angular/src/builders/webpack-server/schema.d.ts
@@ -0,0 +1,8 @@
+import { ServerBuilderOptions } from '@angular-devkit/build-angular';
+
+export interface Schema extends ServerBuilderOptions {
+  customWebpackConfig?: {
+    path: string;
+  };
+  buildLibsFromSource?: boolean;
+}
diff --git a/packages/angular/src/builders/webpack-server/schema.json b/packages/angular/src/builders/webpack-server/schema.json
new file mode 100644
index 0000000000..8555d2b990
--- /dev/null
+++ b/packages/angular/src/builders/webpack-server/schema.json
@@ -0,0 +1,276 @@
+{
+  "version": 2,
+  "outputCapture": "direct-nodejs",
+  "$schema": "http://json-schema.org/draft-07/schema",
+  "title": "Schema for Webpack Server",
+  "description": "The webpack-dev-server executor is very similar to the standard server builder provided by the Angular Devkit. It is usually used in tandem with `@nrwl/angular:webpack-browser` when your Angular application uses a custom webpack configuration and NgUniversal for SSR.",
+  "type": "object",
+  "properties": {
+    "main": {
+      "type": "string",
+      "description": "The full path for the main entry point to the server app, relative to the current workspace."
+    },
+    "tsConfig": {
+      "type": "string",
+      "default": "tsconfig.app.json",
+      "description": "The full path for the TypeScript configuration file, relative to the current workspace."
+    },
+    "inlineStyleLanguage": {
+      "description": "The stylesheet language to use for the application's inline component styles.",
+      "type": "string",
+      "default": "css",
+      "enum": ["css", "less", "sass", "scss"]
+    },
+    "stylePreprocessorOptions": {
+      "description": "Options to pass to style preprocessors",
+      "type": "object",
+      "properties": {
+        "includePaths": {
+          "description": "Paths to include. Paths will be resolved to project root.",
+          "type": "array",
+          "items": {
+            "type": "string"
+          },
+          "default": []
+        }
+      },
+      "additionalProperties": false
+    },
+    "optimization": {
+      "description": "Enables optimization of the build output. Including minification of scripts and styles, tree-shaking and dead-code elimination. For more information, see https://angular.io/guide/workspace-config#optimization-configuration.",
+      "default": true,
+      "x-user-analytics": "ep.ng_optimization",
+      "oneOf": [
+        {
+          "type": "object",
+          "properties": {
+            "scripts": {
+              "type": "boolean",
+              "description": "Enables optimization of the scripts output.",
+              "default": true
+            },
+            "styles": {
+              "type": "boolean",
+              "description": "Enables optimization of the styles output.",
+              "default": true
+            }
+          },
+          "additionalProperties": false
+        },
+        {
+          "type": "boolean"
+        }
+      ]
+    },
+    "fileReplacements": {
+      "description": "Replace compilation source files with other compilation source files in the build.",
+      "type": "array",
+      "items": {
+        "$ref": "#/definitions/fileReplacement"
+      },
+      "default": []
+    },
+    "outputPath": {
+      "type": "string",
+      "description": "The full path for the new output directory, relative to the current workspace.\n\nBy default, writes output to a folder named dist/ in the current project."
+    },
+    "resourcesOutputPath": {
+      "type": "string",
+      "description": "The path where style resources will be placed, relative to outputPath."
+    },
+    "sourceMap": {
+      "description": "Output source maps for scripts and styles. For more information, see https://angular.io/guide/workspace-config#source-map-configuration.",
+      "default": false,
+      "oneOf": [
+        {
+          "type": "object",
+          "properties": {
+            "scripts": {
+              "type": "boolean",
+              "description": "Output source maps for all scripts.",
+              "default": true
+            },
+            "styles": {
+              "type": "boolean",
+              "description": "Output source maps for all styles.",
+              "default": true
+            },
+            "hidden": {
+              "type": "boolean",
+              "description": "Output source maps used for error reporting tools.",
+              "default": false
+            },
+            "vendor": {
+              "type": "boolean",
+              "description": "Resolve vendor packages source maps.",
+              "default": false
+            }
+          },
+          "additionalProperties": false
+        },
+        {
+          "type": "boolean"
+        }
+      ]
+    },
+    "deployUrl": {
+      "type": "string",
+      "description": "URL where files will be deployed.",
+      "x-deprecated": "Use \"baseHref\" browser builder option, \"APP_BASE_HREF\" DI token or a combination of both instead. For more information, see https://angular.io/guide/deployment#the-deploy-url."
+    },
+    "verbose": {
+      "type": "boolean",
+      "description": "Adds more details to output logging.",
+      "default": false
+    },
+    "progress": {
+      "type": "boolean",
+      "description": "Log progress to the console while building.",
+      "default": true
+    },
+    "i18nMissingTranslation": {
+      "type": "string",
+      "description": "How to handle missing translations for i18n.",
+      "enum": ["warning", "error", "ignore"],
+      "default": "warning"
+    },
+    "i18nDuplicateTranslation": {
+      "type": "string",
+      "description": "How to handle duplicate translations for i18n.",
+      "enum": ["warning", "error", "ignore"],
+      "default": "warning"
+    },
+    "localize": {
+      "description": "Translate the bundles in one or more locales.",
+      "oneOf": [
+        {
+          "type": "boolean",
+          "description": "Translate all locales."
+        },
+        {
+          "type": "array",
+          "description": "List of locales ID's to translate.",
+          "minItems": 1,
+          "items": {
+            "type": "string",
+            "pattern": "^[a-zA-Z]{2,3}(-[a-zA-Z]{4})?(-([a-zA-Z]{2}|[0-9]{3}))?(-[a-zA-Z]{5,8})?(-x(-[a-zA-Z0-9]{1,8})+)?$"
+          }
+        }
+      ]
+    },
+    "outputHashing": {
+      "type": "string",
+      "description": "Define the output filename cache-busting hashing mode.",
+      "default": "none",
+      "enum": ["none", "all", "media", "bundles"]
+    },
+    "deleteOutputPath": {
+      "type": "boolean",
+      "description": "Delete the output path before building.",
+      "default": true
+    },
+    "preserveSymlinks": {
+      "type": "boolean",
+      "description": "Do not use the real path when resolving modules. If unset then will default to `true` if NodeJS option --preserve-symlinks is set."
+    },
+    "extractLicenses": {
+      "type": "boolean",
+      "description": "Extract all licenses in a separate file, in the case of production builds only.",
+      "default": true
+    },
+    "namedChunks": {
+      "type": "boolean",
+      "description": "Use file name for lazy loaded chunks.",
+      "default": false
+    },
+    "externalDependencies": {
+      "description": "Exclude the listed external dependencies from being bundled into the bundle. Instead, the created bundle relies on these dependencies to be available during runtime.",
+      "type": "array",
+      "items": {
+        "type": "string"
+      },
+      "default": []
+    },
+    "bundleDependencies": {
+      "description": "Which external dependencies to bundle into the bundle. By default, all of node_modules will be bundled.",
+      "default": true,
+      "oneOf": [
+        {
+          "type": "boolean"
+        },
+        {
+          "type": "string",
+          "enum": ["none", "all"]
+        }
+      ]
+    },
+    "statsJson": {
+      "type": "boolean",
+      "description": "Generates a 'stats.json' file which can be analyzed using tools such as 'webpack-bundle-analyzer'.",
+      "default": false
+    },
+    "watch": {
+      "type": "boolean",
+      "description": "Run build when files change.",
+      "default": false
+    },
+    "poll": {
+      "type": "number",
+      "description": "Enable and define the file watching poll time period in milliseconds."
+    },
+    "customWebpackConfig": {
+      "description": "Options for additional webpack configurations.",
+      "type": "object",
+      "properties": {
+        "path": {
+          "description": "Path to additional webpack configuration, relative to the workspace root.",
+          "type": "string"
+        }
+      },
+      "additionalProperties": false
+    },
+    "buildLibsFromSource": {
+      "type": "boolean",
+      "description": "Read buildable libraries from source instead of building them separately.",
+      "default": true
+    }
+  },
+  "additionalProperties": false,
+  "required": ["outputPath", "main", "tsConfig"],
+  "definitions": {
+    "fileReplacement": {
+      "oneOf": [
+        {
+          "type": "object",
+          "properties": {
+            "src": {
+              "type": "string",
+              "pattern": "\\.(([cm]?j|t)sx?|json)$"
+            },
+            "replaceWith": {
+              "type": "string",
+              "pattern": "\\.(([cm]?j|t)sx?|json)$"
+            }
+          },
+          "additionalProperties": false,
+          "required": ["src", "replaceWith"]
+        },
+        {
+          "type": "object",
+          "properties": {
+            "replace": {
+              "type": "string",
+              "pattern": "\\.(([cm]?j|t)sx?|json)$"
+            },
+            "with": {
+              "type": "string",
+              "pattern": "\\.(([cm]?j|t)sx?|json)$"
+            }
+          },
+          "additionalProperties": false,
+          "required": ["replace", "with"]
+        }
+      ]
+    }
+  }
+}
diff --git a/packages/angular/src/builders/webpack-server/webpack-server.impl.ts b/packages/angular/src/builders/webpack-server/webpack-server.impl.ts
new file mode 100644
index 0000000000..bc42e86c22
--- /dev/null
+++ b/packages/angular/src/builders/webpack-server/webpack-server.impl.ts
@@ -0,0 +1,108 @@
+import { BuilderContext, createBuilder } from '@angular-devkit/architect';
+import { JsonObject } from '@angular-devkit/core';
+import { joinPathFragments, readCachedProjectGraph } from '@nrwl/devkit';
+import {
+  calculateProjectDependencies,
+  createTmpTsConfig,
+  DependentBuildableProjectNode,
+} from '@nrwl/workspace/src/utilities/buildable-libs-utils';
+import { existsSync } from 'fs';
+import { join } from 'path';
+import { Observable } from 'rxjs';
+import { merge } from 'webpack-merge';
+import { resolveCustomWebpackConfig } from '../utilities/webpack';
+import {
+  executeServerBuilder,
+  ServerBuilderOutput,
+} from '@angular-devkit/build-angular';
+import { Schema } from './schema';
+
+function buildServerApp(
+  options: Schema,
+  context: BuilderContext
+): Observable<ServerBuilderOutput> {
+  const { buildLibsFromSource, customWebpackConfig, ...delegateOptions } =
+    options;
+  // If there is a path to custom webpack config
+  // Invoke our own support for custom webpack config
+  if (customWebpackConfig && customWebpackConfig.path) {
+    const pathToWebpackConfig = joinPathFragments(
+      context.workspaceRoot,
+      customWebpackConfig.path
+    );
+
+    if (existsSync(pathToWebpackConfig)) {
+      return buildServerAppWithCustomWebpackConfiguration(
+        delegateOptions,
+        context,
+        pathToWebpackConfig
+      );
+    } else {
+      throw new Error(
+        `Custom Webpack Config File Not Found!\nTo use a custom webpack config, please ensure the path to the custom webpack file is correct: \n${pathToWebpackConfig}`
+      );
+    }
+  }
+
+  return executeServerBuilder(delegateOptions, context);
+}
+
+function buildServerAppWithCustomWebpackConfiguration(
+  options: Schema,
+  context: BuilderContext,
+  pathToWebpackConfig: string
+) {
+  return executeServerBuilder(options, context as any, {
+    webpackConfiguration: async (baseWebpackConfig) => {
+      const customWebpackConfiguration = resolveCustomWebpackConfig(
+        pathToWebpackConfig,
+        options.tsConfig
+      );
+      // The extra Webpack configuration file can also export a Promise, for instance:
+      // `module.exports = new Promise(...)`. If it exports a single object, but not a Promise,
+      // then await will just resolve that object.
+      const config = await customWebpackConfiguration;
+
+      // The extra Webpack configuration file can export a synchronous or asynchronous function,
+      // for instance: `module.exports = async config => { ... }`.
+      if (typeof config === 'function') {
+        return config(baseWebpackConfig, options, context.target);
+      } else {
+        return merge(baseWebpackConfig, config);
+      }
+    },
+  });
+}
+
+export function executeWebpackServerBuilder(
+  options: Schema,
+  context: BuilderContext
+): Observable<ServerBuilderOutput> {
+  options.buildLibsFromSource ??= true;
+  let dependencies: DependentBuildableProjectNode[];
+
+  if (!options.buildLibsFromSource) {
+    const result = calculateProjectDependencies(
+      readCachedProjectGraph(),
+      context.workspaceRoot,
+      context.target.project,
+      context.target.target,
+      context.target.configuration
+    );
+    dependencies = result.dependencies;
+
+    options.tsConfig = createTmpTsConfig(
+      join(context.workspaceRoot, options.tsConfig),
+      context.workspaceRoot,
+      result.target.data.root,
+      dependencies
+    );
+    process.env.NX_TSCONFIG_PATH = options.tsConfig;
+  }
+
+  return buildServerApp(options, context);
+}
+
+export default createBuilder<JsonObject & Schema>(
+  executeWebpackServerBuilder
+) as any;