diff --git a/stdlib/js/react/react.cue b/stdlib/js/react/react.cue
index 420e1452..42ea07a8 100644
--- a/stdlib/js/react/react.cue
+++ b/stdlib/js/react/react.cue
@@ -1,9 +1,11 @@
 package react
 
 import (
+	"strings"
+
 	"dagger.io/dagger"
+	"dagger.io/dagger/op"
 	"dagger.io/alpine"
-	"dagger.io/docker"
 )
 
 // A ReactJS application
@@ -11,6 +13,13 @@ import (
 	// Application source code
 	source: dagger.#Artifact
 
+	// Environment variables
+	env: [string]: string
+
+	// Write the contents of `environment` to this file,
+	// in the "envfile" format.
+	writeEnvFile: string | *""
+
 	// Yarn-specific settings
 	yarn: {
 		// Read build output from this directory
@@ -20,47 +29,50 @@ import (
 		// Run this yarn script
 		script: string | *"build"
 	}
-	setup: [
-		"mkdir -p /cache/yarn",
-	]
 
-	// Build the application in a container, using yarn
-	build: docker.#Container & {
-		image: alpine.#Image & {
-			package: bash: "=~5.1"
-			package: yarn: "=~1.22"
-		}
-		dir:     "/src"
-		command: """
-			yarn install --production false
-			yarn run "$YARN_BUILD_SCRIPT"
-			mv "$YARN_BUILD_DIRECTORY" \(outputDir)
-			"""
-		volume: {
-			src: {
-				from: source
-				dest: "/src"
+	build: #up: [
+		op.#Load & {
+			from: alpine.#Image & {
+				package: bash: "=~5.1"
+				package: yarn: "=~1.22"
 			}
-			//   yarnCache: {
-			//    type: "cache"
-			//    dest: "/cache/yarn"
-			//   }
-		}
-		outputDir: "/build"
-		shell: {
-			path: "/bin/bash"
+		},
+		op.#Exec & {
 			args: [
+				"/bin/bash",
 				"--noprofile",
 				"--norc",
-				"-eo", "pipefail",
+				"-eo",
+				"pipefail",
 				"-c",
+				"""
+					[ -n "$ENVFILE_NAME" ] && echo "$ENVFILE" > "$ENVFILE_NAME"
+					cat .env
+					yarn install --production false
+					yarn run "$YARN_BUILD_SCRIPT"
+					mv "$YARN_BUILD_DIRECTORY" /build
+					""",
 			]
-		}
-		env: {
-			YARN_BUILD_SCRIPT:    yarn.script
-			YARN_CACHE_FOLDER:    "/cache/yarn"
-			YARN_BUILD_DIRECTORY: yarn.buildDir
-		}
-	}
-
+			if env != _|_ {
+				"env": env
+			}
+			"env": {
+				YARN_BUILD_SCRIPT:    yarn.script
+				YARN_CACHE_FOLDER:    "/cache/yarn"
+				YARN_BUILD_DIRECTORY: yarn.buildDir
+				if writeEnvFile != "" {
+					ENVFILE_NAME: writeEnvFile
+					ENVFILE:      strings.Join([ for k, v in env {"\(k)=\(v)"}], "\n")
+				}
+			}
+			dir: "/src"
+			mount: {
+				"/src": from: source
+				"/cache/yarn": "cache"
+			}
+		},
+		op.#Subdir & {
+			dir: "/build"
+		},
+	]
 }
diff --git a/stdlib/netlify/netlify.cue b/stdlib/netlify/netlify.cue
index 012bb8df..b9410867 100644
--- a/stdlib/netlify/netlify.cue
+++ b/stdlib/netlify/netlify.cue
@@ -3,7 +3,7 @@ package netlify
 import (
 	"dagger.io/dagger"
 	"dagger.io/alpine"
-	"dagger.io/docker"
+	"dagger.io/dagger/op"
 )
 
 // A Netlify account
@@ -42,52 +42,45 @@ import (
 	// Logs URL for this deployment
 	logsUrl: string
 
-	// Deployment container
-	#deploy: docker.#Container & {
-		image: alpine.#Image & {
-			package: {
-				bash: "=~5.1"
-				jq:   "=~1.6"
-				curl: "=~7.74"
-				yarn: "=~1.22"
+	#up: [
+		op.#Load & {
+			from: alpine.#Image & {
+				package: bash: "=~5.1"
+				package: jq:   "=~1.6"
+				package: curl: "=~7.74"
+				package: yarn: "=~1.22"
 			}
-		}
-		setup: [
-			"yarn global add netlify-cli@2.47.0",
-		]
-		shell: {
-			path: "/bin/bash"
+		},
+		op.#Exec & {
+			args: ["yarn", "global", "add", "netlify-cli@2.47.0"]
+		},
+		op.#Exec & {
 			args: [
+				"/bin/bash",
 				"--noprofile",
 				"--norc",
 				"-eo",
 				"pipefail",
 				"-c",
+				#code,
 			]
-		}
-		dir: "/src"
-		volume: "contents": {
-			dest: "/src"
-			from: contents
-		}
-		env: {
-			NETLIFY_SITE_NAME: name
-			if (create) {
-				NETLIFY_SITE_CREATE: "1"
+			env: {
+				NETLIFY_SITE_NAME: name
+				if (create) {
+					NETLIFY_SITE_CREATE: "1"
+				}
+				if customDomain != _|_ {
+					NETLIFY_DOMAIN: customDomain
+				}
+				NETLIFY_ACCOUNT:    account.name
+				NETLIFY_AUTH_TOKEN: account.token
 			}
-			if customDomain != _|_ {
-				NETLIFY_DOMAIN: customDomain
-			}
-			NETLIFY_ACCOUNT:    account.name
-			NETLIFY_AUTH_TOKEN: account.token
-		}
-		export: {
+			dir: "/src"
+			mount: "/src": from: contents
+		},
+		op.#Export & {
 			source: "/output.json"
 			format: "json"
-		}
-	}
-
-	// FIXME: this is a hack to use docker.#Container while exporting 
-	// values.
-	#up: #deploy.#up
+		},
+	]
 }
diff --git a/stdlib/netlify/netlify.sh.cue b/stdlib/netlify/netlify.sh.cue
index 604fa743..34d89ff1 100644
--- a/stdlib/netlify/netlify.sh.cue
+++ b/stdlib/netlify/netlify.sh.cue
@@ -1,6 +1,6 @@
 package netlify
 
-#Site: #deploy: command: #"""
+#code: #"""
 	create_site() {
 	    url="https://api.netlify.com/api/v1/${NETLIFY_ACCOUNT:-}/sites"