Cannot get started with project examples

[explorigin]

Describe the bug
I have followed https://github.com/KanoComputing/kano-code/blob/master/SETUP.md up to "Browse the directories under examples to run the editor." and I cannot see anything meaningful in a browser

To Reproduce
Steps to reproduce the behavior:

1. clone the repo
2. run yarn
3. run yarn tsc --watch
4. Switch to another terminal
5. run yarn serve
6. Open a browser to http://localhost:8000 (observe blank page)
7. Open a browser to http://localhost:8000/examples/activity-bar/index.html (observe blank page)

Expected behavior
To see something like remotely similar to what I see at https://code.kano.me/challenge/loops/FN000_Blocks_1

Desktop (please complete the following information):

• OS: OSX 10.14.6
• Browser FF and Chrome
• Version Evergreen

Additional context
If I run yarn build I get quite a few errors:

➜  kano-code git:(master) yarn build
yarn run v1.22.5
$ yarn clean && yarn vendor && yarn build:src && yarn build:def
$ rimraf ./dist
$ yarn vendor:monaco
$ yarn transform-monaco-css && yarn bundle-monaco-workers && yarn copy-monaco-sources
$ node ./scripts/transform-monaco.js
$ yarn bundle-monaco-worker:editor && yarn bundle-monaco-worker:ts
$ rollup node_modules/monaco-editor/esm/vs/editor/editor.worker.js -f iife --name editorWorker -o ./dist/vendor/monaco-workers/editor.worker.js

node_modules/monaco-editor/esm/vs/editor/editor.worker.js → ./dist/vendor/monaco-workers/editor.worker.js...
(!) `this` has been rewritten to `undefined`
https://rollupjs.org/guide/en#error-this-is-undefined
node_modules/monaco-editor/esm/vs/base/common/worker/simpleWorker.js
3:  *  Licensed under the MIT License. See License.txt in the project root for license information.
4:  *--------------------------------------------------------------------------------------------*/
5: var __extends = (this && this.__extends) || (function () {
                    ^
6:     var extendStatics = function (d, b) {
7:         extendStatics = Object.setPrototypeOf ||
...and 1 other occurrence
node_modules/monaco-editor/esm/vs/editor/common/services/editorSimpleWorker.js
3:  *  Licensed under the MIT License. See License.txt in the project root for license information.
4:  *--------------------------------------------------------------------------------------------*/
5: var __extends = (this && this.__extends) || (function () {
                    ^
6:     var extendStatics = function (d, b) {
7:         extendStatics = Object.setPrototypeOf ||
...and 1 other occurrence
node_modules/monaco-editor/esm/vs/base/common/iterator.js
3:  *  Licensed under the MIT License. See License.txt in the project root for license information.
4:  *--------------------------------------------------------------------------------------------*/
5: var __extends = (this && this.__extends) || (function () {
                    ^
6:     var extendStatics = function (d, b) {
7:         extendStatics = Object.setPrototypeOf ||
...and 1 other occurrence

...and 3 other files
created ./dist/vendor/monaco-workers/editor.worker.js in 770ms
$ rollup node_modules/monaco-editor/esm/vs/language/typescript/ts.worker.js -f iife --name tsWorker -o ./dist/vendor/monaco-workers/ts.worker.js

node_modules/monaco-editor/esm/vs/language/typescript/ts.worker.js → ./dist/vendor/monaco-workers/ts.worker.js...
(!) `this` has been rewritten to `undefined`
https://rollupjs.org/guide/en#error-this-is-undefined
node_modules/monaco-editor/esm/vs/base/common/worker/simpleWorker.js
3:  *  Licensed under the MIT License. See License.txt in the project root for license information.
4:  *--------------------------------------------------------------------------------------------*/
5: var __extends = (this && this.__extends) || (function () {
                    ^
6:     var extendStatics = function (d, b) {
7:         extendStatics = Object.setPrototypeOf ||
...and 1 other occurrence
node_modules/monaco-editor/esm/vs/editor/common/services/editorSimpleWorker.js
3:  *  Licensed under the MIT License. See License.txt in the project root for license information.
4:  *--------------------------------------------------------------------------------------------*/
5: var __extends = (this && this.__extends) || (function () {
                    ^
6:     var extendStatics = function (d, b) {
7:         extendStatics = Object.setPrototypeOf ||
...and 1 other occurrence
node_modules/monaco-editor/esm/vs/language/typescript/lib/typescriptServices.js
15:
16: "use strict";
17: var __assign = (this && this.__assign) || function () {
                    ^
18:     __assign = Object.assign || function(t) {
19:         for (var s, i = 1, n = arguments.length; i < n; i++) {
...and 7 other occurrences

...and 4 other files
created ./dist/vendor/monaco-workers/ts.worker.js in 8.5s
$ node ./scripts/copy-monaco.js
$ tsc
$ tsc --allowJs false --declaration --emitDeclarationOnly || exit 0
src/app/elements/kano-app-editor/kano-app-editor.ts:12:36 - error TS7016: Could not find a declaration file for module '../kc-workspace-toolbar/kc-workspace-toolbar.js'. '/Users/tim2957/projects/kano-code/src/app/elements/kc-workspace-toolbar/kc-workspace-toolbar.js' implicitly has an 'any' type.

12 import { KCWorkspaceToolbar } from '../kc-workspace-toolbar/kc-workspace-toolbar.js';
                                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

src/app/lib/meta-api/module.ts:34:32 - error TS2304: Cannot find name 'Blockly'.

34         customField?(Blockly : Blockly, block : Block) : Field;
                                  ~~~~~~~

src/app/lib/meta-api/module.ts:34:32 - error TS4033: Property 'blockly' of exported interface has or is using private name 'Blockly'.

34         customField?(Blockly : Blockly, block : Block) : Field;
                                  ~~~~~~~

src/app/lib/meta-api/module.ts:36:31 - error TS2304: Cannot find name 'Blockly'.

36         javascript?(Blockly : Blockly, block : Block, m : MetaFunction) : string|string[];
                                 ~~~~~~~

src/app/lib/meta-api/module.ts:36:31 - error TS4033: Property 'blockly' of exported interface has or is using private name 'Blockly'.

36         javascript?(Blockly : Blockly, block : Block, m : MetaFunction) : string|string[];
                                 ~~~~~~~

src/app/lib/modules/color/api.ts:31:24 - error TS2304: Cannot find name 'Blockly'.

31     register(Blockly : Blockly) {
                          ~~~~~~~

src/app/lib/modules/control/api.ts:53:24 - error TS2304: Cannot find name 'Blockly'.

53     register(Blockly : Blockly) {
                          ~~~~~~~

src/app/lib/modules/draw/api.ts:98:28 - error TS2304: Cannot find name 'Blockly'.

98         register(Blockly : Blockly) {
                              ~~~~~~~

src/app/lib/modules/draw/blocks/repeats.ts:8:49 - error TS2304: Cannot find name 'Blockly'.

8 export const registerRepeatDrawing = (Blockly : Blockly, defaultColor: string) => {
                                                  ~~~~~~~

src/app/lib/modules/draw/blocks/repeats.ts:59:50 - error TS2304: Cannot find name 'Blockly'.

59 export const registerRepeatInCircle = (Blockly : Blockly, defaultColor: string) => {
                                                    ~~~~~~~

src/app/lib/modules/draw/fields/angle-picker.ts:9:46 - error TS2304: Cannot find name 'Blockly'.

9 export const registerAnglePicker = (Blockly: Blockly) => {
                                               ~~~~~~~

src/app/lib/modules/lists/api.ts:27:24 - error TS2304: Cannot find name 'Blockly'.

27     register(Blockly : Blockly) {
                          ~~~~~~~

src/app/lib/modules/logic/api.ts:29:24 - error TS2304: Cannot find name 'Blockly'.

29     register(Blockly : Blockly) {
                          ~~~~~~~

src/app/lib/modules/math/api.ts:46:24 - error TS2304: Cannot find name 'Blockly'.

46     register(Blockly : Blockly) {
                          ~~~~~~~

src/app/lib/modules/stamp/api.ts:37:34 - error TS2304: Cannot find name 'Blockly'.

37             javascript(Blockly : Blockly, block: Block) {
                                    ~~~~~~~

src/app/lib/modules/variables/api.ts:16:24 - error TS2304: Cannot find name 'Blockly'.

16     register(Blockly : Blockly) {
                          ~~~~~~~

src/app/lib/parts/parts/sequencer/api.ts:85:34 - error TS2304: Cannot find name 'Blockly'.

85             javascript(Blockly : Blockly, block : Block, m : Meta) {
                                    ~~~~~~~

src/app/lib/parts/parts/speaker/factory.ts:34:34 - error TS2304: Cannot find name 'Blockly'.

34             javascript(Blockly : Blockly, block : Block) {
                                    ~~~~~~~

src/app/lib/parts/parts/transform/api.ts:54:34 - error TS2304: Cannot find name 'Blockly'.

54             javascript(Blockly : Blockly, block : Block, m : Meta) {
                                    ~~~~~~~

src/app/lib/preview/providers/gif.ts:6:28 - error TS7016: Could not find a declaration file for module '../../gif-encoder/encoder.js'. '/Users/tim2957/projects/kano-code/src/app/lib/gif-encoder/encoder.js' implicitly has an 'any' type.

6 import { GifEncoder } from '../../gif-encoder/encoder.js';
                             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

src/app/lib/source-editor/blockly/api-renderer.ts:58:26 - error TS2304: Cannot find name 'Blockly'.

58         mod.def.register(Blockly);
                            ~~~~~~~

src/app/lib/source-editor/blockly/api-renderer.ts:140:18 - error TS2304: Cannot find name 'Blockly'.

140         register(Blockly);
                     ~~~~~~~

src/app/lib/source-editor/blockly/api-renderer.ts:473:14 - error TS2304: Cannot find name 'Blockly'.

473             (Blockly as any).Blocks[alias] = (Blockly as any).Blocks[id];
                 ~~~~~~~

src/app/lib/source-editor/blockly/api-renderer.ts:473:47 - error TS2304: Cannot find name 'Blockly'.

473             (Blockly as any).Blocks[alias] = (Blockly as any).Blocks[id];
                                                  ~~~~~~~

src/app/lib/source-editor/blockly/api-renderer.ts:474:14 - error TS2304: Cannot find name 'Blockly'.

474             (Blockly as any).JavaScript[alias] = (Blockly as any).JavaScript[id];
                 ~~~~~~~

src/app/lib/source-editor/blockly/api-renderer.ts:474:51 - error TS2304: Cannot find name 'Blockly'.

474             (Blockly as any).JavaScript[alias] = (Blockly as any).JavaScript[id];
                                                      ~~~~~~~

src/app/lib/source-editor/blockly/creator/toolbox.ts:29:34 - error TS2304: Cannot find name 'Blockly'.

29             javascript(Blockly : Blockly, block : Block) {
                                    ~~~~~~~

src/app/lib/source-editor/blockly/creator/toolbox.ts:49:34 - error TS2304: Cannot find name 'Blockly'.

49             javascript(Blockly : Blockly, block : Block) {
                                    ~~~~~~~

src/app/lib/source-editor/blockly/creator/toolbox.ts:58:34 - error TS2304: Cannot find name 'Blockly'.

58             javascript(Blockly : Blockly) {
                                    ~~~~~~~

src/app/lib/source-editor/blockly/creator/toolbox.ts:76:34 - error TS2304: Cannot find name 'Blockly'.

76             javascript(Blockly : Blockly, block : Block) {
                                    ~~~~~~~

src/app/lib/source-editor/blockly/creator/toolbox.ts:96:34 - error TS2304: Cannot find name 'Blockly'.

96             javascript(Blockly : Blockly, block : Block) {
                                    ~~~~~~~


Found 31 errors.

✨  Done in 30.97s.

[explorigin]

Possibly relevant (but I don't use VSCode so it's not clear to me where to change a setting): microsoft/TypeScript#32148