Build A Slack Clone
About the Author: Antonio Erdeljac (Code With Antonio)
Antonio Erdeljac is a Croatian developer behind the Code With Antonio YouTube channel — one of the more active independent full-stack JavaScript channels online, with a focus on long-form, project-based clones of well-known applications (Netflix clone, Spotify clone, Notion clone, Discord clone, Trello clone). The channel's distinctive contribution is the depth of those clone tutorials — each typically runs 8-15 hours and covers the full back-end-to-front-end implementation of a working app.
The course catalog covers the modern Next.js / React stack: App Router patterns, server components, server actions, Prisma + PostgreSQL, NextAuth / Clerk authentication, Stripe billing, file uploads, real-time features with Pusher, and the deployment workflow with Vercel. Material is paid extended versions of the YouTube content with additional features and context.
The CourseFlix listing under this source carries over 15 Code With Antonio courses spanning that range. Material is aimed at intermediate-and-up React developers building real full-stack applications.
Watch Online 42 lessons
- Space or K: play or pause
- J: rewind 10 seconds
- L: forward 10 seconds
- Left Arrow: rewind 5 seconds
- Right Arrow: forward 5 seconds
- Up Arrow: volume up
- Down Arrow: volume down
- M: mute or unmute
- F: toggle fullscreen
- T: toggle theater mode
- I: toggle mini player
- 0 to 9: seek to 0 to 90 percent of the video
- Shift plus N: next video
- Shift plus P: previous video
| # | Lesson Title | Duration |
|---|---|---|
| 1 | Intro | 01:57 |
| 2 | Setup | 10:42 |
| 3 | Auth screens | 21:54 |
| 4 | Database setup | 11:42 |
| 5 | Github authentication | 25:07 |
| 6 | Google authentication | 09:52 |
| 7 | Password authentication | 11:44 |
| 8 | User information | 19:34 |
| 9 | Workspace creation | 52:57 |
| 10 | Toolbar component | 19:23 |
| 11 | Sidebar component | 24:22 |
| 12 | Members functionality | 15:33 |
| 13 | Workspace sidebar component | 30:12 |
| 14 | Workspace preferences | 40:49 |
| 15 | Workspace members & channels | 41:41 |
| 16 | Channel creation | 16:04 |
| 17 | Invite modal | 17:13 |
| 18 | Join workspace page | 24:08 |
| 19 | Channel page | 18:35 |
| 20 | Channel header component | 35:49 |
| 21 | Editor component | 54:42 |
| 22 | Emoji picker component | 14:12 |
| 23 | Image picker component | 08:07 |
| 24 | Editor submit functionality | 28:31 |
| 25 | Image upload functionality | 12:17 |
| 26 | Schema completion | 10:18 |
| 27 | Messages GET API | 36:00 |
| 28 | Messages list component | 49:57 |
| 29 | Channel hero component | 07:14 |
| 30 | Message toolbar component | 10:37 |
| 31 | Edit & delete message functionality | 20:59 |
| 32 | Message reactions | 22:01 |
| 33 | Infinite load | 05:42 |
| 34 | Thread functionality | 30:32 |
| 35 | Thread messages | 16:37 |
| 36 | Conversation page | 42:12 |
| 37 | Thread bar component | 13:12 |
| 38 | Member profile panel | 17:19 |
| 39 | Update & remove member functionality | 29:11 |
| 40 | Search dialog component | 13:16 |
| 41 | Layout shift fix & new emoji picker | 06:16 |
| 42 | Deployment to Vercel | 15:00 |
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