System Design Twitter Course
sysdesign101, Systems, sdr, AI Agents RoadmapOver 5 weeks, you'll build a complete Twitter-like platform that scales from 1,000 to 10 million users. You'll experience every architectural decision point, every performance bottleneck, every moment when adding more servers makes things worse instead of
| Platform |  | Pricing | Freemium | Publishes | Twice weekly |
|---|---|---|---|---|---|
| Issues | 86 | Founded | a year ago | Last Issue | 7 days ago |
| Active | |||||
Read this Newsletter
twitterdesign.substack.comLatest Issues
Lesson 19 — Shrinking the Index: Vector Quantization in Practice
Course: NEXUS 2.0 — Multi-Model Data Infrastructure Stack: Qdrant · Node.js 20 · InProcessEngine Builds on: Day 18 (atomic two-phase writes, SurrealDB + Redpanda)
Before You Start
Lesson 18 — The Data Lifecycle: Automated Hot/Warm/Cold Migration
What We’re Building Today
What We’re Building Today
Lesson 17: The Object Store — Setting Up SeaweedFS
What We’re Building Today
What We’re Building Today
Lesson 16: The Precision Layer — Hybrid Search with Metadata Filters
What We’re Building Today
What We’re Building Today
Lesson 15 — The Meaning Index: Semantic Search over 100K Tweets
What We’re Building Today
-
A Qdrant VectorStore collection seeded with 100,000 tweet vectors via batched upserts of 1,000 points each, running fully in-process with zero external dependencies by default
-
A
/search/semanticendp...
Audience Metrics
Subscribers, engagement, traffic and sponsorship for System Design Twitter Course .
| Subscribers | Engagement | 68 | Monthly Web Visits | ||
|---|---|---|---|---|---|
| Accepts Sponsors | Estimated Cost per Ad | ||||
Explore More
Authors
The writers behind this newsletter.
Design & Build Twitter from scratch https://systemdrd.com/
Over two decades work experience at Silicon Valley, USA, CANADA and INDIA. Seasoned Principal Engineer with experience in developing complex, high-performance software solutions with a focus on low level system and distributed systems.
AI Agent Roadmap — a structured, hands-on path from LLM fundamentals to deploying production-grade multi-agent systems. Most engineers know AI Agents are coming. Fewer know how to actually build them.
Frequently Asked Questions
How can I access the email archive for System Design Twitter Course ?
You can find recent issues that have been published by System Design Twitter Course on Reletter by scrolling up to where it says Latest Issues. Tap on the link for any of the most recent emails or hit More Issues to see older ones.
How many subscribers does System Design Twitter Course have?
To see how many people subscribe to System Design Twitter Course , simply upgrade your Reletter account. We provide readership numbers and lots of other stats for this newsletter so you can decide if it's worth reaching out to.
How can I advertise in System Design Twitter Course ?
Newsletter advertising can be extremely effective when it's done right. Before you pitch System Design Twitter Course as a potential sponsor or partner, make sure that you've done your research and checked its newsletter stats with Reletter.
Then, personalize one of our winning pitching templates and send it to the right person using the contact info provided.
How much does it cost to sponsor a publication like System Design Twitter Course ?
Newsletter ad rates (or CPM) vary depending on many factors, including industry, number of subscribers, open rate, ad placement and more.
To find out how much an ad will cost, contact System Design Twitter Course using the contact information provided and ask for a copy of their media kit.
How can I find newsletters related to System Design Twitter Course ?
Scroll up to where it says Related Newsletters to see other publications like System Design Twitter Course . You can also search our email newsletter directory to discover other newsletters that cover the topics you're interested in.
How do I contact System Design Twitter Course ?
Reletter provides this newsletter's website URL above, where you will often find their contact information. We also provide links to associated social media accounts and pitching templates so you can reach out fast.