diff --git a/libs/automation/pxt.json b/libs/automation/pxt.json
deleted file mode 100644
index e0eec278..00000000
--- a/libs/automation/pxt.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-    "additionalFilePath": "../../node_modules/pxt-common-packages/libs/automation",
-    "dependencies": {
-        "ev3": "file:../ev3"
-    }
-}
\ No newline at end of file
diff --git a/libs/chassis/README.md b/libs/chassis/README.md
deleted file mode 100644
index 4d4eea72..00000000
--- a/libs/chassis/README.md
+++ /dev/null
@@ -1,3 +0,0 @@
-# Chassis
-
-A library to control a chassis.
\ No newline at end of file
diff --git a/libs/chassis/chassis.ts b/libs/chassis/chassis.ts
deleted file mode 100644
index af450310..00000000
--- a/libs/chassis/chassis.ts
+++ /dev/null
@@ -1,97 +0,0 @@
-/**
- * A differential drive robot
- */
-//% weight=50 color=#cf00cf
-namespace chassis {
-    /**
-     * A differential drive robot
-     */
-    //% fixedInstances
-    export class Chassis {
-        // the motor pair
-        public motors: motors.SynchedMotorPair;
-        // the radius of the wheel (cm)
-        public wheelRadius: number;
-        // the distance between the wheels (cm)
-        public baseLength: number;
-
-        constructor() {
-            this.motors = motors.largeBC;
-            this.wheelRadius = 3;
-            this.baseLength = 12;
-        }
-
-        /**
-         * Makes a differential drive robot move with a given speed (cm/s) and rotation rate (deg/s)
-         * using a unicycle model.
-         * @param speed speed of the center point between motors, eg: 10
-         * @param rotationSpeed rotation of the robot around the center point, eg: 30
-         * @param distance
-         **/
-        //% blockId=motorDrive block="drive %chassis|at %speed|cm/s|turning %rotationSpeed|deg/s"
-        //% inlineInputMode=inline
-        //% weight=95 blockGap=8
-        drive(speed: number, rotationSpeed: number, distance: number = 0) {
-            if (!speed) {
-                this.motors.stop();
-                return;
-            } 
-
-            // speed is expressed in %
-            const R = this.wheelRadius; // cm
-            const L = this.baseLength; // cm
-            const PI = 3.14;
-            const maxw = 170 / 60 * 2 * PI; // rad / s
-            const maxv = maxw * R; // cm / s
-            // speed is cm / s
-            const v = speed; // cm / s
-            const w = rotationSpeed / 360 * 2 * PI; // rad / s
-
-            const vr = (2 * v + w * L) / (2 * R); // rad / s
-            const vl = (2 * v - w * L) / (2 * R); // rad / s
-
-            const sr = vr / maxw * 100; // % 
-            const sl = vl / maxw * 100; // %
-
-            // cm / (cm/s) = s
-            const seconds = distance / speed;
-
-            this.motors.tank(sr, sl, seconds, MoveUnit.Seconds)
-        }
-
-        /**
-         * Sets the wheel radius in centimeters
-         * @param cm 
-         */
-        //% blockId=chassisSetWheelRadius block="set %chassis|wheel radius to %cm|(cm)"
-        setWheelRadius(cm: number) {
-            this.wheelRadius = cm;
-        }
-
-        /**
-         * Sets the base length in centimeters
-         * @param cm 
-         */
-        //% blockId=chassisSetBaseLength block="set %chassis|base length to %cm|(cm)"
-        setBaseLength(cm: number) {
-            this.baseLength = cm;
-        }
-        
-        /**
-         * Sets the motors used by the chassis, default is B+C
-         * @param motors 
-         */
-        //% blockId=chassisSetMotors block="set %chassis|motors to %motors"
-        //% weight=10
-        setMotors(motors: motors.SynchedMotorPair) {
-            this.motors = motors;
-        }
-
-        toString(): string {
-            return `chassis base ${this.baseLength}, wheel ${this.wheelRadius}`;
-        }
-    }
-
-    //% fixedInstance whenUsed
-    export const chassis = new Chassis();
-}
\ No newline at end of file
diff --git a/libs/chassis/pxt.json b/libs/chassis/pxt.json
deleted file mode 100644
index 936aed4e..00000000
--- a/libs/chassis/pxt.json
+++ /dev/null
@@ -1,15 +0,0 @@
-{
-    "name": "chassis",
-    "description": "Chassis robot support",
-    "files": [
-        "README.md",
-        "chassis.ts"
-    ],
-    "testFiles": [
-        "test.ts"
-    ],
-    "public": true,
-    "dependencies": {
-            "core": "file:../core"
-    }
-}
\ No newline at end of file
diff --git a/libs/chassis/test.ts b/libs/chassis/test.ts
deleted file mode 100644
index 8b137891..00000000
--- a/libs/chassis/test.ts
+++ /dev/null
@@ -1 +0,0 @@
-