diff --git a/packages/compiler/package.json b/packages/compiler/package.json
index d3cf41a..5ce09c1 100644
--- a/packages/compiler/package.json
+++ b/packages/compiler/package.json
@@ -13,7 +13,9 @@
     "compile": "../../node_modules/.bin/tsc",
     "compile:watch": "../../node_modules/.bin/tsc -w",
     "rollup": "../../node_modules/.bin/rollup -c",
-    "rollup:watch": "../../node_modules/.bin/rollup -c -w"
+    "rollup:watch": "../../node_modules/.bin/rollup -c -w",
+    "clean": "rm -rf lib dist",
+    "veryclean": "yarn run clean && rm -rf node_modules"
   },
   "main": "dist/syndicate-compiler.js",
   "module": "lib/index.js",
diff --git a/packages/core/package.json b/packages/core/package.json
index 85a285d..a1feef2 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -17,7 +17,9 @@
     "rollup": "../../node_modules/.bin/rollup -c",
     "rollup:watch": "../../node_modules/.bin/rollup -c -w",
     "test": "../../node_modules/.bin/jest",
-    "cover": "../../node_modules/.bin/nyc --reporter=html ../../node_modules/.bin/jest"
+    "cover": "../../node_modules/.bin/nyc --reporter=html ../../node_modules/.bin/jest",
+    "clean": "rm -rf lib dist",
+    "veryclean": "yarn run clean && rm -rf node_modules"
   },
   "main": "dist/syndicate.js",
   "module": "lib/index.js",
diff --git a/packages/html/package.json b/packages/html/package.json
index 5466962..5a196ca 100644
--- a/packages/html/package.json
+++ b/packages/html/package.json
@@ -18,7 +18,8 @@
     "compile:watch": "syndicate-tsc -w --verbose --intermediate-directory src.ts",
     "rollup": "rollup -c",
     "rollup:watch": "rollup -c -w",
-    "clean": "rm -rf lib/ dist/ index.js index.js.map"
+    "clean": "rm -rf lib/ dist/ index.js index.js.map",
+    "veryclean": "yarn run clean && rm -rf node_modules"
   },
   "dependencies": {
     "@syndicate-lang/core": "^0.11.3"
diff --git a/packages/syndicatec/package.json b/packages/syndicatec/package.json
index a2efad7..c22823e 100644
--- a/packages/syndicatec/package.json
+++ b/packages/syndicatec/package.json
@@ -11,7 +11,9 @@
   "scripts": {
     "prepare": "yarn compile",
     "compile": "../../node_modules/.bin/tsc",
-    "compile:watch": "../../node_modules/.bin/tsc -w"
+    "compile:watch": "../../node_modules/.bin/tsc -w",
+    "clean": "rm -rf lib",
+    "veryclean": "yarn run clean && rm -rf node_modules"
   },
   "author": "Tony Garnock-Jones <tonyg@leastfixedpoint.com>",
   "dependencies": {
diff --git a/packages/timer/package.json b/packages/timer/package.json
index 52b6a27..924c998 100644
--- a/packages/timer/package.json
+++ b/packages/timer/package.json
@@ -18,7 +18,8 @@
     "compile:watch": "syndicate-tsc -w --verbose --intermediate-directory src.ts",
     "rollup": "rollup -c",
     "rollup:watch": "rollup -c -w",
-    "clean": "rm -rf lib/ dist/ index.js index.js.map"
+    "clean": "rm -rf lib/ dist/ index.js index.js.map",
+    "veryclean": "yarn run clean && rm -rf node_modules"
   },
   "dependencies": {
     "@syndicate-lang/core": "^0.11.3"
diff --git a/packages/ts-plugin/package.json b/packages/ts-plugin/package.json
index 3f876ae..91ee06f 100644
--- a/packages/ts-plugin/package.json
+++ b/packages/ts-plugin/package.json
@@ -11,7 +11,9 @@
   "scripts": {
     "prepare": "yarn compile",
     "compile": "../../node_modules/.bin/tsc",
-    "compile:watch": "../../node_modules/.bin/tsc -w"
+    "compile:watch": "../../node_modules/.bin/tsc -w",
+    "clean": "rm -rf lib",
+    "veryclean": "yarn run clean && rm -rf node_modules"
   },
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
diff --git a/packages/tsc/package.json b/packages/tsc/package.json
index 35ec2e0..400fa03 100644
--- a/packages/tsc/package.json
+++ b/packages/tsc/package.json
@@ -11,7 +11,9 @@
   "scripts": {
     "prepare": "yarn compile",
     "compile": "../../node_modules/.bin/tsc",
-    "compile:watch": "../../node_modules/.bin/tsc -w"
+    "compile:watch": "../../node_modules/.bin/tsc -w",
+    "clean": "rm -rf lib",
+    "veryclean": "yarn run clean && rm -rf node_modules"
   },
   "author": "Tony Garnock-Jones <tonyg@leastfixedpoint.com>",
   "dependencies": {
diff --git a/packages/ws-relay/package.json b/packages/ws-relay/package.json
index a673d4e..05e3385 100644
--- a/packages/ws-relay/package.json
+++ b/packages/ws-relay/package.json
@@ -16,7 +16,8 @@
     "compile:watch": "syndicate-tsc -w --verbose --intermediate-directory src.ts",
     "rollup": "rollup -c",
     "rollup:watch": "rollup -c -w",
-    "clean": "rm -rf lib/ dist/ index.js index.js.map"
+    "clean": "rm -rf lib/ dist/ index.js index.js.map",
+    "veryclean": "yarn run clean && rm -rf node_modules"
   },
   "main": "dist/syndicate-ws-relay.js",
   "module": "lib/index.js",