diff --git a/action/action.yml b/action/action.yml
index ea77061..b2fca6f 100644
--- a/action/action.yml
+++ b/action/action.yml
@@ -22,6 +22,15 @@ inputs:
   tag:
     description: 'GCR tag to use for builder image'
     default: 'latest'
+  useBuildpacks:
+    description: 'GCR tag to use for builder image'
+    default: true
+  cmd:
+    description: 'command to run a Functions Framework server at localhost:8080. Ignored if -buildpacks=true.'
+    default: ''
+  startDelay:
+    description: 'GCR tag to use for builder image'
+    default: 1
 runs:
   using: 'node12'
   main: 'dist/index.js'
diff --git a/action/dist/index.js b/action/dist/index.js
index 8a09077..b2f2fc4 100644
--- a/action/dist/index.js
+++ b/action/dist/index.js
@@ -49,32 +49,6 @@ require('./sourcemap-register.js');module.exports =
 /************************************************************************/
 /******/ ({
 
-/***/ 82:
-/***/ (function(__unusedmodule, exports) {
-
-"use strict";
-
-// We use any as a valid input type
-/* eslint-disable @typescript-eslint/no-explicit-any */
-Object.defineProperty(exports, "__esModule", { value: true });
-/**
- * Sanitizes an input into a string so it can be passed into issueCommand safely
- * @param input input to sanitize into a string
- */
-function toCommandValue(input) {
-    if (input === null || input === undefined) {
-        return '';
-    }
-    else if (typeof input === 'string' || input instanceof String) {
-        return input;
-    }
-    return JSON.stringify(input);
-}
-exports.toCommandValue = toCommandValue;
-//# sourceMappingURL=utils.js.map
-
-/***/ }),
-
 /***/ 87:
 /***/ (function(module) {
 
@@ -82,42 +56,6 @@ module.exports = require("os");
 
 /***/ }),
 
-/***/ 102:
-/***/ (function(__unusedmodule, exports, __webpack_require__) {
-
-"use strict";
-
-// For internal use, subject to change.
-var __importStar = (this && this.__importStar) || function (mod) {
-    if (mod && mod.__esModule) return mod;
-    var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
-    result["default"] = mod;
-    return result;
-};
-Object.defineProperty(exports, "__esModule", { value: true });
-// We use any as a valid input type
-/* eslint-disable @typescript-eslint/no-explicit-any */
-const fs = __importStar(__webpack_require__(747));
-const os = __importStar(__webpack_require__(87));
-const utils_1 = __webpack_require__(82);
-function issueCommand(command, message) {
-    const filePath = process.env[`GITHUB_${command}`];
-    if (!filePath) {
-        throw new Error(`Unable to find environment variable for file command ${command}`);
-    }
-    if (!fs.existsSync(filePath)) {
-        throw new Error(`Missing file at path: ${filePath}`);
-    }
-    fs.appendFileSync(filePath, `${utils_1.toCommandValue(message)}${os.EOL}`, {
-        encoding: 'utf8'
-    });
-}
-exports.issueCommand = issueCommand;
-//# sourceMappingURL=file-command.js.map
-
-/***/ }),
-
 /***/ 129:
 /***/ (function(module) {
 
@@ -139,7 +77,6 @@ var __importStar = (this && this.__importStar) || function (mod) {
 };
 Object.defineProperty(exports, "__esModule", { value: true });
 const os = __importStar(__webpack_require__(87));
-const utils_1 = __webpack_require__(82);
 /**
  * Commands
  *
@@ -193,14 +130,28 @@ class Command {
         return cmdStr;
     }
 }
+/**
+ * Sanitizes an input into a string so it can be passed into issueCommand safely
+ * @param input input to sanitize into a string
+ */
+function toCommandValue(input) {
+    if (input === null || input === undefined) {
+        return '';
+    }
+    else if (typeof input === 'string' || input instanceof String) {
+        return input;
+    }
+    return JSON.stringify(input);
+}
+exports.toCommandValue = toCommandValue;
 function escapeData(s) {
-    return utils_1.toCommandValue(s)
+    return toCommandValue(s)
         .replace(/%/g, '%25')
         .replace(/\r/g, '%0D')
         .replace(/\n/g, '%0A');
 }
 function escapeProperty(s) {
-    return utils_1.toCommandValue(s)
+    return toCommandValue(s)
         .replace(/%/g, '%25')
         .replace(/\r/g, '%0D')
         .replace(/\n/g, '%0A')
@@ -234,8 +185,6 @@ var __importStar = (this && this.__importStar) || function (mod) {
 };
 Object.defineProperty(exports, "__esModule", { value: true });
 const command_1 = __webpack_require__(431);
-const file_command_1 = __webpack_require__(102);
-const utils_1 = __webpack_require__(82);
 const os = __importStar(__webpack_require__(87));
 const path = __importStar(__webpack_require__(622));
 /**
@@ -262,17 +211,9 @@ var ExitCode;
  */
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 function exportVariable(name, val) {
-    const convertedVal = utils_1.toCommandValue(val);
+    const convertedVal = command_1.toCommandValue(val);
     process.env[name] = convertedVal;
-    const filePath = process.env['GITHUB_ENV'] || '';
-    if (filePath) {
-        const delimiter = '_GitHubActionsFileCommandDelimeter_';
-        const commandValue = `${name}<<${delimiter}${os.EOL}${convertedVal}${os.EOL}${delimiter}`;
-        file_command_1.issueCommand('ENV', commandValue);
-    }
-    else {
-        command_1.issueCommand('set-env', { name }, convertedVal);
-    }
+    command_1.issueCommand('set-env', { name }, convertedVal);
 }
 exports.exportVariable = exportVariable;
 /**
@@ -288,13 +229,7 @@ exports.setSecret = setSecret;
  * @param inputPath
  */
 function addPath(inputPath) {
-    const filePath = process.env['GITHUB_PATH'] || '';
-    if (filePath) {
-        file_command_1.issueCommand('PATH', inputPath);
-    }
-    else {
-        command_1.issueCommand('add-path', {}, inputPath);
-    }
+    command_1.issueCommand('add-path', {}, inputPath);
     process.env['PATH'] = `${inputPath}${path.delimiter}${process.env['PATH']}`;
 }
 exports.addPath = addPath;
@@ -530,6 +465,9 @@ function run() {
         const target = core.getInput('target');
         const runtime = core.getInput('runtime');
         const tag = core.getInput('tag');
+        const useBuildpacks = core.getInput('useBuildpacks');
+        const cmd = core.getInput('cmd');
+        const startDelay = core.getInput('startDelay');
         // Install conformance client binary.
         runCmd('go get github.com/GoogleCloudPlatform/functions-framework-conformance/client');
         // Run the client with the specified parameters.
@@ -542,6 +480,9 @@ function run() {
             `-builder-target=${target}`,
             `-builder-runtime=${runtime}`,
             `-builder-tag=${tag}`,
+            `-buildpacks=${useBuildpacks}`,
+            `-cmd=${cmd}`,
+            `-start-delay=${startDelay}`,
         ].join(' '));
     });
 }
diff --git a/action/dist/index.js.map b/action/dist/index.js.map
index e037083..d348de7 100644
--- a/action/dist/index.js.map
+++ b/action/dist/index.js.map
@@ -1 +1 @@
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exports\n \t\treturn __webpack_require__(526);\n \t};\n\n \t// run startup\n \treturn startup();\n","\"use strict\";\n// We use any as a valid input type\n/* eslint-disable @typescript-eslint/no-explicit-any */\nObject.defineProperty(exports, \"__esModule\", { value: true });\n/**\n * Sanitizes an input into a string so it can be passed into issueCommand safely\n * @param input input to sanitize into a string\n */\nfunction toCommandValue(input) {\n    if (input === null || input === undefined) {\n        return '';\n    }\n    else if (typeof input === 'string' || input instanceof String) {\n        return input;\n    }\n    return JSON.stringify(input);\n}\nexports.toCommandValue = toCommandValue;\n//# sourceMappingURL=utils.js.map","module.exports = require(\"os\");","\"use strict\";\n// For internal use, subject to change.\nvar __importStar = (this && this.__importStar) || function (mod) {\n    if (mod && mod.__esModule) return mod;\n    var result = {};\n    if (mod != null) for 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strict\";\nvar __importStar = (this && this.__importStar) || function (mod) {\n    if (mod && mod.__esModule) return mod;\n    var result = {};\n    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];\n    result[\"default\"] = mod;\n    return result;\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nconst os = __importStar(require(\"os\"));\nconst utils_1 = require(\"./utils\");\n/**\n * Commands\n *\n * Command Format:\n *   ::name key=value,key=value::message\n *\n * Examples:\n *   ::warning::This is the message\n *   ::set-env name=MY_VAR::some value\n */\nfunction issueCommand(command, properties, message) {\n    const cmd = new Command(command, properties, message);\n    process.stdout.write(cmd.toString() + os.EOL);\n}\nexports.issueCommand = issueCommand;\nfunction issue(name, message = '') {\n    issueCommand(name, {}, message);\n}\nexports.issue = issue;\nconst CMD_STRING = '::';\nclass Command {\n    constructor(command, properties, message) {\n        if (!command) {\n            command = 'missing.command';\n        }\n        this.command = command;\n        this.properties = properties;\n        this.message = message;\n    }\n    toString() {\n        let cmdStr = CMD_STRING + this.command;\n        if (this.properties && Object.keys(this.properties).length > 0) {\n            cmdStr += ' ';\n            let first = true;\n            for (const key in this.properties) {\n                if (this.properties.hasOwnProperty(key)) {\n                    const val = this.properties[key];\n                    if (val) {\n                        if (first) {\n                            first = false;\n                        }\n                        else {\n                            cmdStr += ',';\n                        }\n                        cmdStr += `${key}=${escapeProperty(val)}`;\n                    }\n                }\n            }\n        }\n        cmdStr += `${CMD_STRING}${escapeData(this.message)}`;\n        return cmdStr;\n    }\n}\nfunction escapeData(s) {\n    return utils_1.toCommandValue(s)\n        .replace(/%/g, '%25')\n        .replace(/\\r/g, '%0D')\n        .replace(/\\n/g, '%0A');\n}\nfunction escapeProperty(s) {\n    return utils_1.toCommandValue(s)\n        .replace(/%/g, '%25')\n        .replace(/\\r/g, '%0D')\n        .replace(/\\n/g, '%0A')\n        .replace(/:/g, '%3A')\n        .replace(/,/g, '%2C');\n}\n//# sourceMappingURL=command.js.map","\"use strict\";\nvar __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\n    return new (P || (P = Promise))(function (resolve, reject) {\n        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n        function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\n        step((generator = generator.apply(thisArg, _arguments || [])).next());\n    });\n};\nvar __importStar = (this && this.__importStar) || function (mod) {\n    if (mod && mod.__esModule) return mod;\n    var result = {};\n    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];\n    result[\"default\"] = mod;\n    return result;\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nconst command_1 = require(\"./command\");\nconst file_command_1 = require(\"./file-command\");\nconst utils_1 = require(\"./utils\");\nconst os = __importStar(require(\"os\"));\nconst path = __importStar(require(\"path\"));\n/**\n * The code to exit an action\n */\nvar ExitCode;\n(function (ExitCode) {\n    /**\n     * A code indicating that the action was successful\n     */\n    ExitCode[ExitCode[\"Success\"] = 0] = \"Success\";\n    /**\n     * A code indicating that the action was a failure\n     */\n    ExitCode[ExitCode[\"Failure\"] = 1] = \"Failure\";\n})(ExitCode = exports.ExitCode || (exports.ExitCode = {}));\n//-----------------------------------------------------------------------\n// Variables\n//-----------------------------------------------------------------------\n/**\n * Sets env variable for this action and future actions in the job\n * @param name the name of the variable to set\n * @param val the value of the variable. Non-string values will be converted to a string via JSON.stringify\n */\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nfunction exportVariable(name, val) {\n    const convertedVal = utils_1.toCommandValue(val);\n    process.env[name] = convertedVal;\n    const filePath = process.env['GITHUB_ENV'] || '';\n    if (filePath) {\n        const delimiter = '_GitHubActionsFileCommandDelimeter_';\n        const commandValue = `${name}<<${delimiter}${os.EOL}${convertedVal}${os.EOL}${delimiter}`;\n        file_command_1.issueCommand('ENV', commandValue);\n    }\n    else {\n        command_1.issueCommand('set-env', { name }, convertedVal);\n    }\n}\nexports.exportVariable = exportVariable;\n/**\n * Registers a secret which will get masked from logs\n * @param secret value of the secret\n */\nfunction setSecret(secret) {\n    command_1.issueCommand('add-mask', {}, secret);\n}\nexports.setSecret = setSecret;\n/**\n * Prepends inputPath to the PATH (for this action and future actions)\n * @param inputPath\n */\nfunction addPath(inputPath) {\n    const filePath = process.env['GITHUB_PATH'] || '';\n    if (filePath) {\n        file_command_1.issueCommand('PATH', inputPath);\n    }\n    else {\n        command_1.issueCommand('add-path', {}, inputPath);\n    }\n    process.env['PATH'] = `${inputPath}${path.delimiter}${process.env['PATH']}`;\n}\nexports.addPath = addPath;\n/**\n * Gets the value of an input.  The value is also trimmed.\n *\n * @param     name     name of the input to get\n * @param     options  optional. See InputOptions.\n * @returns   string\n */\nfunction getInput(name, options) {\n    const val = process.env[`INPUT_${name.replace(/ /g, '_').toUpperCase()}`] || '';\n    if (options && options.required && !val) {\n        throw new Error(`Input required and not supplied: ${name}`);\n    }\n    return val.trim();\n}\nexports.getInput = getInput;\n/**\n * Sets the value of an output.\n *\n * @param     name     name of the output to set\n * @param     value    value to store. Non-string values will be converted to a string via JSON.stringify\n */\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nfunction setOutput(name, value) {\n    command_1.issueCommand('set-output', { name }, value);\n}\nexports.setOutput = setOutput;\n/**\n * Enables or disables the echoing of commands into stdout for the rest of the step.\n * Echoing is disabled by default if ACTIONS_STEP_DEBUG is not set.\n *\n */\nfunction setCommandEcho(enabled) {\n    command_1.issue('echo', enabled ? 'on' : 'off');\n}\nexports.setCommandEcho = setCommandEcho;\n//-----------------------------------------------------------------------\n// Results\n//-----------------------------------------------------------------------\n/**\n * Sets the action status to failed.\n * When the action exits it will be with an exit code of 1\n * @param message add error issue message\n */\nfunction setFailed(message) {\n    process.exitCode = ExitCode.Failure;\n    error(message);\n}\nexports.setFailed = setFailed;\n//-----------------------------------------------------------------------\n// Logging Commands\n//-----------------------------------------------------------------------\n/**\n * Gets whether Actions Step Debug is on or not\n */\nfunction isDebug() {\n    return process.env['RUNNER_DEBUG'] === '1';\n}\nexports.isDebug = isDebug;\n/**\n * Writes debug message to user log\n * @param message debug message\n */\nfunction debug(message) {\n    command_1.issueCommand('debug', {}, message);\n}\nexports.debug = debug;\n/**\n * Adds an error issue\n * @param message error issue message. 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.replace(/:/g, '%3A')\n        .replace(/,/g, '%2C');\n}\n//# sourceMappingURL=command.js.map","\"use strict\";\nvar __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\n    return new (P || (P = Promise))(function (resolve, reject) {\n        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n        function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\n        step((generator = generator.apply(thisArg, _arguments || [])).next());\n    });\n};\nvar __importStar = (this && this.__importStar) || function (mod) {\n    if (mod && mod.__esModule) return mod;\n    var result = {};\n    if (mod != null) for (var k in mod) if 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* @param val the value of the variable. Non-string values will be converted to a string via JSON.stringify\n */\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nfunction exportVariable(name, val) {\n    const convertedVal = command_1.toCommandValue(val);\n    process.env[name] = convertedVal;\n    command_1.issueCommand('set-env', { name }, convertedVal);\n}\nexports.exportVariable = exportVariable;\n/**\n * Registers a secret which will get masked from logs\n * @param secret value of the secret\n */\nfunction setSecret(secret) {\n    command_1.issueCommand('add-mask', {}, secret);\n}\nexports.setSecret = setSecret;\n/**\n * Prepends inputPath to the PATH (for this action and future actions)\n * @param inputPath\n */\nfunction addPath(inputPath) {\n    command_1.issueCommand('add-path', {}, inputPath);\n    process.env['PATH'] = `${inputPath}${path.delimiter}${process.env['PATH']}`;\n}\nexports.addPath = addPath;\n/**\n * Gets the value of an input.  The value is also trimmed.\n *\n * @param     name     name of the input to get\n * @param     options  optional. See InputOptions.\n * @returns   string\n */\nfunction getInput(name, options) {\n    const val = process.env[`INPUT_${name.replace(/ /g, '_').toUpperCase()}`] || '';\n    if (options && options.required && !val) {\n        throw new Error(`Input required and not supplied: ${name}`);\n    }\n    return val.trim();\n}\nexports.getInput = getInput;\n/**\n * Sets the value of an output.\n *\n * @param     name     name of the output to set\n * @param     value    value to store. Non-string values will be converted to a string via JSON.stringify\n */\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nfunction setOutput(name, value) {\n    command_1.issueCommand('set-output', { name }, value);\n}\nexports.setOutput = setOutput;\n/**\n * Enables or disables the echoing of commands into stdout for the rest of the step.\n * Echoing is disabled by default if ACTIONS_STEP_DEBUG is not set.\n *\n */\nfunction setCommandEcho(enabled) {\n    command_1.issue('echo', enabled ? 'on' : 'off');\n}\nexports.setCommandEcho = setCommandEcho;\n//-----------------------------------------------------------------------\n// Results\n//-----------------------------------------------------------------------\n/**\n * Sets the action status to failed.\n * When the action exits it will be with an exit code of 1\n * @param message add error issue message\n */\nfunction setFailed(message) {\n    process.exitCode = ExitCode.Failure;\n    error(message);\n}\nexports.setFailed = setFailed;\n//-----------------------------------------------------------------------\n// Logging Commands\n//-----------------------------------------------------------------------\n/**\n * Gets whether Actions Step Debug is on or not\n */\nfunction isDebug() {\n    return process.env['RUNNER_DEBUG'] === '1';\n}\nexports.isDebug = isDebug;\n/**\n * Writes debug message to user log\n * @param message debug message\n */\nfunction debug(message) {\n    command_1.issueCommand('debug', {}, message);\n}\nexports.debug = debug;\n/**\n * Adds an error issue\n * @param message error issue message. Errors will be converted to string via toString()\n */\nfunction error(message) {\n    command_1.issue('error', message instanceof Error ? message.toString() : message);\n}\nexports.error = error;\n/**\n * Adds an warning issue\n * @param message warning issue message. Errors will be converted to string via toString()\n */\nfunction warning(message) {\n    command_1.issue('warning', message instanceof Error ? message.toString() : message);\n}\nexports.warning = warning;\n/**\n * Writes info to log with console.log.\n * @param message info message\n */\nfunction info(message) {\n    process.stdout.write(message + os.EOL);\n}\nexports.info = info;\n/**\n * Begin an output group.\n *\n * Output until the next `groupEnd` will be foldable in this group\n *\n * @param name The name of the output group\n */\nfunction startGroup(name) {\n    command_1.issue('group', name);\n}\nexports.startGroup = startGroup;\n/**\n * End an output group.\n */\nfunction endGroup() {\n    command_1.issue('endgroup');\n}\nexports.endGroup = endGroup;\n/**\n * Wrap an asynchronous function call in a group.\n *\n * Returns the same type as the function itself.\n *\n * @param name The name of the group\n * @param fn The function to wrap in the group\n */\nfunction group(name, fn) {\n    return __awaiter(this, void 0, void 0, function* () {\n        startGroup(name);\n        let result;\n        try {\n            result = yield fn();\n        }\n        finally {\n            endGroup();\n        }\n        return result;\n    });\n}\nexports.group = group;\n//-----------------------------------------------------------------------\n// Wrapper action state\n//-----------------------------------------------------------------------\n/**\n * Saves state for current action, the state can only be retrieved by this action's post job execution.\n *\n * @param     name     name of the state to store\n * @param     value    value to store. Non-string values will be converted to a string via JSON.stringify\n */\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nfunction saveState(name, value) {\n    command_1.issueCommand('save-state', { name }, value);\n}\nexports.saveState = saveState;\n/**\n * Gets the value of an state set by this action's main execution.\n *\n * @param     name     name of the state to get\n * @returns   string\n */\nfunction getState(name) {\n    return process.env[`STATE_${name}`] || '';\n}\nexports.getState = getState;\n//# sourceMappingURL=core.js.map","\"use strict\";\nvar __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {\n    if (k2 === undefined) k2 = k;\n    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });\n}) : (function(o, m, k, k2) {\n    if (k2 === undefined) k2 = k;\n    o[k2] = m[k];\n}));\nvar __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {\n    Object.defineProperty(o, \"default\", { enumerable: true, value: v });\n}) : function(o, v) {\n    o[\"default\"] = v;\n});\nvar __importStar = (this && this.__importStar) || function (mod) {\n    if (mod && mod.__esModule) return mod;\n    var result = {};\n    if (mod != null) for (var k in mod) if (k !== \"default\" && Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\n    __setModuleDefault(result, mod);\n    return result;\n};\nvar __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\n    return new (P || (P = Promise))(function (resolve, reject) {\n        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n        function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\n        step((generator = generator.apply(thisArg, _arguments || [])).next());\n    });\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nconst core = __importStar(require(\"@actions/core\"));\nconst childProcess = __importStar(require(\"child_process\"));\nconst fs = __importStar(require(\"fs\"));\n/**\n * writeFileToConsole contents of file to console.\n * @param {string} path - filepath to write to the console\n */\nfunction writeFileToConsole(path) {\n    try {\n        const data = fs.readFileSync(path, 'utf8');\n        console.log(`${path}: ${data}`);\n    }\n    catch (e) {\n        console.log(`$unable to read {path}, skipping: ${e}`);\n    }\n}\n/**\n * Run a specified command.\n * @param {string} cmd - command to run\n */\nfunction runCmd(cmd) {\n    try {\n        childProcess.execSync(cmd);\n    }\n    catch (error) {\n        writeFileToConsole('serverlog_stdout.txt');\n        writeFileToConsole('serverlog_stderr.txt');\n        writeFileToConsole('function_output.json');\n        core.setFailed(error.message);\n    }\n}\nfunction run() {\n    return __awaiter(this, void 0, void 0, function* () {\n        const outputFile = core.getInput('outputFile');\n        const functionType = core.getInput('functionType');\n        const validateMapping = core.getInput('validateMapping');\n        const source = core.getInput('source');\n        const target = core.getInput('target');\n        const runtime = core.getInput('runtime');\n        const tag = core.getInput('tag');\n        const useBuildpacks = core.getInput('useBuildpacks');\n        const cmd = core.getInput('cmd');\n        const startDelay = core.getInput('startDelay');\n        // Install conformance client binary.\n        runCmd('go get github.com/GoogleCloudPlatform/functions-framework-conformance/client');\n        // Run the client with the specified parameters.\n        runCmd([\n            `go run github.com/GoogleCloudPlatform/functions-framework-conformance/client`,\n            `-output-file=${outputFile}`,\n            `-type=${functionType}`,\n            `-validate-mapping=${validateMapping}`,\n            `-builder-source=${source}`,\n            `-builder-target=${target}`,\n            `-builder-runtime=${runtime}`,\n            `-builder-tag=${tag}`,\n            `-buildpacks=${useBuildpacks}`,\n            `-cmd=${cmd}`,\n            `-start-delay=${startDelay}`,\n        ].join(' '));\n    });\n}\nrun();\n","module.exports = require(\"path\");","module.exports = require(\"fs\");"],"sourceRoot":""}
\ No newline at end of file
diff --git a/action/src/index.ts b/action/src/index.ts
index 699adc8..20b077e 100644
--- a/action/src/index.ts
+++ b/action/src/index.ts
@@ -39,6 +39,9 @@ async function run() {
   const target = core.getInput('target');
   const runtime = core.getInput('runtime');
   const tag = core.getInput('tag');
+  const useBuildpacks = core.getInput('useBuildpacks');
+  const cmd = core.getInput('cmd');
+  const startDelay = core.getInput('startDelay');
 
   // Install conformance client binary.
   runCmd(
@@ -54,6 +57,9 @@ async function run() {
     `-builder-target=${target}`,
     `-builder-runtime=${runtime}`,
     `-builder-tag=${tag}`,
+    `-buildpacks=${useBuildpacks}`,
+    `-cmd=${cmd}`,
+    `-start-delay=${startDelay}`,
   ].join(' '));
 }
 
diff --git a/events/validators.go b/events/validators.go
index ba52e81..fb5f4ca 100644
--- a/events/validators.go
+++ b/events/validators.go
@@ -242,4 +242,4 @@ func unmarshalMap(data []byte, vi *ValidationInfo) (dataMap map[string]interface
 		vi.Errs = append(vi.Errs, fmt.Errorf("could not parse CloudEvent data as map: %v", err))
 	}
 	return
-}  
+}