diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 014721a..9edf3a5 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -59,6 +59,27 @@ localUser2@kurthutten.com: `abc123`
 
 localAdmin@kurthutten.com: `abc123`
 
+### Discord bot setup
+
+To set up the discord bot to notify when users publish new content (see also [the discord JS tutorial](https://discordjs.guide/preparations/setting-up-a-bot-application.html)):
+
+1. If you're setting up the bot in a dev environment, create a new discord server (the "plus" button on the left when logged into the Discord webpage). Make note of the name of the project.
+2. With [developer mode turned on](https://www.howtogeek.com/714348/how-to-enable-or-disable-developer-mode-on-discord/), right click the channel you wish the bot to announce on and select "Copy ID". Add this to `.env.defaults` as `DISCORD_CHANNEL_ID`.
+3. [create a new application](https://discord.com/developers/applications), or navigate to an existing one.
+4. Create a bot within that application. Copy the bot token and add it to `.env.defaults` as `DISCORD_TOKEN`.
+5. Go to the "URL Generator" under "OAuth2" and create a URL with scope "bot" and text permission "Send Messages".
+6. Copy the generated URL and open it in a new tab. Follow the instructions on the page to add the bot to your discord server.
+
+When you next start CADHub, you should see in the logs `Discord: logged in as <bot name>` and you should see a startup message from the bot in the channel.
+
+To send messages as the bot when things happen in the service, use the `sendChat` helper function:
+
+```typescript
+import { sendChat } from 'src/lib/discord'
+
+sendChat("hello world!")
+```
+
 ## Designs
 
 In progress, though can be [seen on Figma](https://www.figma.com/file/VUh53RdncjZ7NuFYj0RGB9/CadHub?node-id=0%3A1)
diff --git a/app/.env.defaults b/app/.env.defaults
index f698efd..c6799db 100644
--- a/app/.env.defaults
+++ b/app/.env.defaults
@@ -18,9 +18,9 @@ CLOUDINARY_API_KEY=476712943135152
 # trace | info | debug | warn | error | silent
 # LOG_LEVEL=debug
 
-
 # EMAIL_PASSWORD=abc123
-
+# DISCORD_TOKEN=abc123
+# DISCORD_CHANNEL_ID=12345
 
 # CAD_LAMBDA_BASE_URL="http://localhost:8080"
 
diff --git a/app/api/package.json b/app/api/package.json
index 55d32ad..1f5f6ae 100644
--- a/app/api/package.json
+++ b/app/api/package.json
@@ -9,6 +9,7 @@
     "axios": "^0.21.1",
     "cloudinary": "^1.23.0",
     "cors": "^2.8.5",
+    "discord.js": "^13.5.1",
     "express": "^4.17.1",
     "human-id": "^2.0.1",
     "middy": "^0.36.0",
@@ -21,4 +22,4 @@
     "concurrently": "^6.0.0",
     "nodemon": "^2.0.7"
   }
-}
\ No newline at end of file
+}
diff --git a/app/api/src/lib/discord.ts b/app/api/src/lib/discord.ts
new file mode 100644
index 0000000..649566e
--- /dev/null
+++ b/app/api/src/lib/discord.ts
@@ -0,0 +1,34 @@
+import {Client, Intents, MessageAttachment} from "discord.js"
+
+const client = new Client({ intents: [Intents.FLAGS.GUILDS, Intents.FLAGS.GUILD_MESSAGES]})
+
+export async function sendDiscordMessage(text: string, url?: string) {
+  if (!client.isReady()) {
+    console.error(`Discord: client is not ready to send message ("${text}")`);
+  } else {
+    const channel = await client.channels.fetch(process.env.DISCORD_CHANNEL_ID);
+    if (url) {
+      channel.send({ embeds: [{
+        title: text,
+        image: {
+          url: url,
+        },
+      }] });
+
+    } else {
+      channel.send(text)
+    }
+
+  }
+}
+
+client.on("ready", async () => {
+  console.log(`Discord: logged in as ${client.user.tag}`)
+})
+
+if (!process.env.DISCORD_TOKEN || !process.env.DISCORD_CHANNEL_ID) {
+  console.warn("Discord bot not configured - please set process.env.DISCORD_TOKEN and process.env.DISCORD_CHANNEL_ID to send discord chats");
+} else {
+  console.log(`Discord: logging in (token ${process.env.DISCORD_TOKEN})`);
+  client.login(process.env.DISCORD_TOKEN);
+}
diff --git a/app/api/src/services/projects/projects.ts b/app/api/src/services/projects/projects.ts
index 200e40b..2660a67 100644
--- a/app/api/src/services/projects/projects.ts
+++ b/app/api/src/services/projects/projects.ts
@@ -12,6 +12,8 @@ import {
 } from 'src/services/helpers'
 import { requireAuth } from 'src/lib/auth'
 import { requireOwnership, requireProjectOwnership } from 'src/lib/owner'
+import { sendDiscordMessage } from 'src/lib/discord'
+
 
 export const projects = ({ userName }) => {
   if (!userName) {
@@ -243,7 +245,19 @@ export const updateProjectImages = async ({
     const [updatedProject] = await Promise.all([
       projectPromise,
       imageDestroyPromise,
-    ])
+    ]).then(async (result) => {
+      const { userName } = await db.user.findUnique({
+        where: { id: project.userId },
+      })
+      sendDiscordMessage([
+        `${userName} just added an image to their ${project.cadPackage} project:`,
+        `  =>  ${project.title}`,
+        ``,
+        `Check it out, leave a comment, make them feel welcome!`,
+        `https://cadhub.xyz/u/${userName}/${project.title}`
+      ].join('\n'), `https://res.cloudinary.com/irevdev/image/upload/c_scale,w_700/v1/${mainImage}`)
+      return result
+    })
     return updatedProject
   }
 
diff --git a/app/redwood.toml b/app/redwood.toml
index ba5c9a4..4177995 100644
--- a/app/redwood.toml
+++ b/app/redwood.toml
@@ -17,7 +17,7 @@
     'SENTRY_AUTH_TOKEN',
     'SENTRY_ORG',
     'SENTRY_PROJECT',
-    'EMAIL_PASSWORD'
+    'EMAIL_PASSWORD',
     ]
   # experimentalFastRefresh = true # this seems to break cascadeStudio
 [api]
diff --git a/app/yarn.lock b/app/yarn.lock
index c4f9b3e..d0d64a5 100644
--- a/app/yarn.lock
+++ b/app/yarn.lock
@@ -1203,6 +1203,22 @@
   resolved "https://registry.yarnpkg.com/@chevrotain/utils/-/utils-9.1.0.tgz#a34ab0696f9491dee934e848984517d226356f21"
   integrity sha512-llLJZ8OAlZrjGlBvamm6Zdo/HmGAcCLq5gx7cSwUX8No+n/8ip+oaC4x33IdZIif8+Rh5dQUIZXmfbSghiOmNQ==
 
+"@discordjs/builders@^0.11.0":
+  version "0.11.0"
+  resolved "https://registry.yarnpkg.com/@discordjs/builders/-/builders-0.11.0.tgz#4102abe3e0cd093501f3f71931df43eb92f5b0cc"
+  integrity sha512-ZTB8yJdJKrKlq44dpWkNUrAtEJEq0gqpb7ASdv4vmq6/mZal5kOv312hQ56I/vxwMre+VIkoHquNUAfnTbiYtg==
+  dependencies:
+    "@sindresorhus/is" "^4.2.0"
+    discord-api-types "^0.26.0"
+    ts-mixer "^6.0.0"
+    tslib "^2.3.1"
+    zod "^3.11.6"
+
+"@discordjs/collection@^0.4.0":
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/@discordjs/collection/-/collection-0.4.0.tgz#b6488286a1cc7b41b644d7e6086f25a1c1e6f837"
+  integrity sha512-zmjq+l/rV35kE6zRrwe8BHqV78JvIh2ybJeZavBi5NySjWXqN3hmmAKg7kYMMXSeiWtSsMoZ/+MQi0DiQWy2lw==
+
 "@discoveryjs/json-ext@^0.5.0", "@discoveryjs/json-ext@^0.5.3":
   version "0.5.5"
   resolved "https://registry.yarnpkg.com/@discoveryjs/json-ext/-/json-ext-0.5.5.tgz#9283c9ce5b289a3c4f61c12757469e59377f81f3"
@@ -2811,6 +2827,11 @@
   dependencies:
     any-observable "^0.3.0"
 
+"@sapphire/async-queue@^1.1.9":
+  version "1.1.9"
+  resolved "https://registry.yarnpkg.com/@sapphire/async-queue/-/async-queue-1.1.9.tgz#ce69611c8753c4affd905a7ef43061c7eb95c01b"
+  integrity sha512-CbXaGwwlEMq+l1TRu01FJCvySJ1CEFKFclHT48nIfNeZXaAAmmwwy7scUKmYHPUa3GhoMp6Qr1B3eAJux6XgOQ==
+
 "@sentry/browser@^6.5.1":
   version "6.13.3"
   resolved "https://registry.yarnpkg.com/@sentry/browser/-/browser-6.13.3.tgz#d4511791b1e484ad48785eba3bce291fdf115c1e"
@@ -2894,6 +2915,11 @@
   resolved "https://registry.yarnpkg.com/@sindresorhus/is/-/is-0.14.0.tgz#9fb3a3cf3132328151f353de4632e01e52102bea"
   integrity sha512-9NET910DNaIPngYnLLPeg+Ogzqsi9uM4mSboU5y6p8S5DzMTVEsJZrawi+BoDNUVBa2DhJqQYUFvMDfgU062LQ==
 
+"@sindresorhus/is@^4.2.0":
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/@sindresorhus/is/-/is-4.2.1.tgz#b88b5724283db80b507cd612caee9a1947412a20"
+  integrity sha512-BrzrgtaqEre0qfvI8sMTaEvx+bayuhPmfe2rfeUGPPHYr/PLxCOqkOe4TQTDPb+qcqgNcsAtXV/Ew74mcDIE8w==
+
 "@sinonjs/commons@^1.7.0":
   version "1.8.3"
   resolved "https://registry.yarnpkg.com/@sinonjs/commons/-/commons-1.8.3.tgz#3802ddd21a50a949b6721ddd72da36e67e7f1b2d"
@@ -4037,7 +4063,7 @@
   resolved "https://registry.yarnpkg.com/@types/ms/-/ms-0.7.31.tgz#31b7ca6407128a3d2bbc27fe2d21b345397f6197"
   integrity sha512-iiUgKzV9AuaEkZqkOLDIvlQiL6ltuZd9tGcW3gwpnX8JbuiuhFlEGmmFXEXkN50Cvq7Os88IY2v0dkDqXYWVgA==
 
-"@types/node-fetch@^2.5.7":
+"@types/node-fetch@^2.5.12", "@types/node-fetch@^2.5.7":
   version "2.5.12"
   resolved "https://registry.yarnpkg.com/@types/node-fetch/-/node-fetch-2.5.12.tgz#8a6f779b1d4e60b7a57fb6fd48d84fb545b9cc66"
   integrity sha512-MKgC4dlq4kKNa/mYrwpKfzQMB5X3ee5U6fSprkKpToBqBmX4nFZL9cW5jl6sWn+xpRJ7ypWh2yyqqr8UUCstSw==
@@ -4274,6 +4300,13 @@
   dependencies:
     "@types/node" "*"
 
+"@types/ws@^8.2.2":
+  version "8.2.2"
+  resolved "https://registry.yarnpkg.com/@types/ws/-/ws-8.2.2.tgz#7c5be4decb19500ae6b3d563043cd407bf366c21"
+  integrity sha512-NOn5eIcgWLOo6qW8AcuLZ7G8PycXu0xTxxkS6Q18VWFxgPUSOwV0pBj2a/4viNZVu25i7RIB7GttdkAIUUXOOg==
+  dependencies:
+    "@types/node" "*"
+
 "@types/yargs-parser@*":
   version "20.2.1"
   resolved "https://registry.yarnpkg.com/@types/yargs-parser/-/yargs-parser-20.2.1.tgz#3b9ce2489919d9e4fea439b76916abc34b2df129"
@@ -7692,6 +7725,26 @@ dir-glob@^3.0.1:
   dependencies:
     path-type "^4.0.0"
 
+discord-api-types@^0.26.0:
+  version "0.26.1"
+  resolved "https://registry.yarnpkg.com/discord-api-types/-/discord-api-types-0.26.1.tgz#726f766ddc37d60da95740991d22cb6ef2ed787b"
+  integrity sha512-T5PdMQ+Y1MEECYMV5wmyi9VEYPagEDEi4S0amgsszpWY0VB9JJ/hEvM6BgLhbdnKky4gfmZEXtEEtojN8ZKJQQ==
+
+discord.js@^13.5.1:
+  version "13.5.1"
+  resolved "https://registry.yarnpkg.com/discord.js/-/discord.js-13.5.1.tgz#c0af11c7bfdcf6ac3f6bf28c7d96855c0c6a8997"
+  integrity sha512-ejEG5MXzB0eda9Nt+VzqgdvDWVO5U/GynGzq6DRPLaCH1yyn2YRU9J+vCMl77pWA1rzYGX+b/9RI31x0wt3qXA==
+  dependencies:
+    "@discordjs/builders" "^0.11.0"
+    "@discordjs/collection" "^0.4.0"
+    "@sapphire/async-queue" "^1.1.9"
+    "@types/node-fetch" "^2.5.12"
+    "@types/ws" "^8.2.2"
+    discord-api-types "^0.26.0"
+    form-data "^4.0.0"
+    node-fetch "^2.6.1"
+    ws "^8.4.0"
+
 dlv@^1.1.3:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/dlv/-/dlv-1.1.3.tgz#5c198a8a11453596e751494d49874bc7732f2e79"
@@ -9250,7 +9303,7 @@ fork-ts-checker-webpack-plugin@^6.0.4:
     semver "^7.3.2"
     tapable "^1.0.0"
 
-form-data@4.0.0:
+form-data@4.0.0, form-data@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/form-data/-/form-data-4.0.0.tgz#93919daeaf361ee529584b9b31664dc12c9fa452"
   integrity sha512-ETEklSGi5t0QMZuiXoA/Q6vcnxcLQP5vdugSpuAyi6SVGi2clPPp+xgEhuMaHC+zGgn31Kd235W35f7Hykkaww==
@@ -17465,6 +17518,11 @@ ts-log@^2.2.3:
   resolved "https://registry.yarnpkg.com/ts-log/-/ts-log-2.2.3.tgz#4da5640fe25a9fb52642cd32391c886721318efb"
   integrity sha512-XvB+OdKSJ708Dmf9ore4Uf/q62AYDTzFcAdxc8KNML1mmAWywRFVt/dn1KYJH8Agt5UJNujfM3znU5PxgAzA2w==
 
+ts-mixer@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/ts-mixer/-/ts-mixer-6.0.0.tgz#4e631d3a36e3fa9521b973b132e8353bc7267f9f"
+  integrity sha512-nXIb1fvdY5CBSrDIblLn73NW0qRDk5yJ0Sk1qPBF560OdJfQp9jhl+0tzcY09OZ9U+6GpeoI9RjwoIKFIoB9MQ==
+
 ts-morph@12.0.0:
   version "12.0.0"
   resolved "https://registry.yarnpkg.com/ts-morph/-/ts-morph-12.0.0.tgz#a601c3538703755cbfa2d42b62c52df73e9dbbd7"
@@ -17510,7 +17568,7 @@ tslib@^1.8.1, tslib@^1.9.0, tslib@^1.9.2, tslib@^1.9.3:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.14.1.tgz#cf2d38bdc34a134bcaf1091c41f6619e2f672d00"
   integrity sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==
 
-tslib@^2, tslib@^2.0.0, tslib@^2.0.1, tslib@^2.0.3, tslib@^2.1.0, tslib@^2.2.0, tslib@^2.3.0, tslib@~2.3.0:
+tslib@^2, tslib@^2.0.0, tslib@^2.0.1, tslib@^2.0.3, tslib@^2.1.0, tslib@^2.2.0, tslib@^2.3.0, tslib@^2.3.1, tslib@~2.3.0:
   version "2.3.1"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.3.1.tgz#e8a335add5ceae51aa261d32a490158ef042ef01"
   integrity sha512-77EbyPPpMz+FRFRuAFlWMtmgUWGe9UOG2Z25NqCwiIjRhOf5iKGuzSe5P2w1laq+FkRy4p+PCuVkJSGkzTEKVw==
@@ -18618,6 +18676,11 @@ ws@^8.1.0:
   resolved "https://registry.yarnpkg.com/ws/-/ws-8.2.3.tgz#63a56456db1b04367d0b721a0b80cae6d8becbba"
   integrity sha512-wBuoj1BDpC6ZQ1B7DWQBYVLphPWkm8i9Y0/3YdHjHKHiohOJ1ws+3OccDWtH+PoC9DZD5WOTrJvNbWvjS6JWaA==
 
+ws@^8.4.0:
+  version "8.4.0"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-8.4.0.tgz#f05e982a0a88c604080e8581576e2a063802bed6"
+  integrity sha512-IHVsKe2pjajSUIl4KYMQOdlyliovpEPquKkqbwswulszzI7r0SfQrxnXdWAEqOlDCLrVSJzo+O1hAwdog2sKSQ==
+
 xdg-basedir@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/xdg-basedir/-/xdg-basedir-3.0.0.tgz#496b2cc109eca8dbacfe2dc72b603c17c5870ad4"
@@ -18811,6 +18874,11 @@ zip-stream@^3.0.1:
     compress-commons "^3.0.0"
     readable-stream "^3.6.0"
 
+zod@^3.11.6:
+  version "3.11.6"
+  resolved "https://registry.yarnpkg.com/zod/-/zod-3.11.6.tgz#e43a5e0c213ae2e02aefe7cb2b1a6fa3d7f1f483"
+  integrity sha512-daZ80A81I3/9lIydI44motWe6n59kRBfNzTuS2bfzVh1nAXi667TOTWWtatxyG+fwgNUiagSj/CWZwRRbevJIg==
+
 zstddec@^0.0.2:
   version "0.0.2"
   resolved "https://registry.yarnpkg.com/zstddec/-/zstddec-0.0.2.tgz#57e2f28dd1ff56b750e07d158a43f0611ad9eeb4"