
### AI fundamentals

- [Explaining gradient descent in machine learning with a simple analogy](./explaining-gradient-descent-in-machine-learning-with-a-simple-analogy.md)

### Machine learning & deep learning

- [How we crafted the OGIF summarizer bot to streamline weekly knowledge sharing](./how-we-crafted-the-ogif-summarizer-bot-to-streamline-weekly-knowledge-sharing.md)
- [How we created an AI-powered interview system using OpenAI's ChatGPT](./how-we-created-an-ai-powered-interview-system-using-openais-chatgpt.md)

### AI systems & engineering

- [Securing your remote MCP servers](./securing-your-remote-mcp-servers.md)
- [Tool-level security for remote MCP servers](./tool-level-security-for-remote-mcp-servers.md)

### AI in society & industry

- [Why Hollywood and gaming struggle with AI](./why-hollywood-and-gaming-struggle-with-ai.md)


Explore clear explanations of gradient descent, AI-powered interview systems, secure remote servers, and challenges of AI in Hollywood and gaming to enhance your understanding of machine learning and AI applications.

§ AI


### Architecture patterns

- [Event sourcing](./event-sourcing-overview.md)
- [Service-based architecture](./service-based-architecture.md)
- [Overview on broker pattern in distributed system](./overview-on-broker-pattern-in-distributed-system.md)

### Design patterns

- [Builder pattern](./builder-design-pattern.md)
- [Command pattern](./command-pattern.md)
- [Observer pattern](./observer-pattern.md)
- [Prototype pattern](./prototype-design-pattern.md)
- [Singleton pattern](./singleton-design-pattern.md)
- [Strategy pattern](./strategy-design-pattern.md)
- [Visitor pattern](./visitor-design-pattern.md)

### State machines & automata theory

- [C4 diagrams](./c4-diagrams.md) / [C4 modelling]()
- [UML state machine diagram](./uml-state-machine-diagram.md)
- [State pattern](./state-pattern.md)
- [Finite state automata](./finite-state-automata.md)
- [Finite state transducer](./finite-state-transducer.md)
- [Mealy machine](./mealy-machine.md)
- [Moore machine](./moore-machine.md)
- [State explosion](./state-explosion.md)
- [Automata theory placeholder](./automata.md)

### Domain-driven design (DDD)

- [Domain model in DDD](./domain-model-in-domain-driven-design.md)
- [Entities in DDD](./entities-in-domain-driven-design.md)
- [Overview of DDD](./overview-of-domain-driven-design.md)

### Principles & laws

- [Law of Demeter](./law-of-demeter.md)
- [SOLID principles](./solid-principles.md)
- [Principles of good software design](./principles-of-good-software-design.md)

### Case studies & blog posts

- [Write-heavy scalable and reliable inventory platform]()
- [Design file sharing system: directory structure]()

### Implementation notes

- [Redis streaming](./redis-streaming.md)
- [Redis streaming concurrency](./redis-streaming-concurrency-with-master-and-consumers.md)
- [SDK event sourcing](./sdk-event-sourcing.md)

---

### Placeholders & knowledge gaps

- [Reducers](./reducers.md)


Explore comprehensive guides on software architecture patterns, design patterns, state machines, domain-driven design, and key software principles to improve your system design and development skills.

§ Architecture


### Foundational Topics

- [¶ Blocks](./blocks.md)
- [¶ Distributed systems](./distributed-systems.md)
- [¶ PoS](./pos.md)
- [¶ Smart Contract](./smart-contract.md)
- [General](./general.md)
- [Documents](./documents.md)
- [Precautions](./precautions.md)
- [Blockchain Security](./blockchain-security.md)

### Blockchain Concepts & Components

- [Token](./token.md)
- [Multisign wallet](./multisign-wallet.md)
- [Liquidity pool](./liquidity-pool.md)
- [NFT Fractionalization](./nft-fractionalization.md)
- [Dollar Cost Averaging (DCA)](./dollar-cost-averaging.md)

### Layer 2 & Scaling Solutions

- [Layer 2: Scaling Solutions for Ethereum]()
- [Design System For Layer 2 Using Zk Rollup](./design-system-for-layer-2-using-zk-rollup.md)
- [Polygon zkEVM architecture](./polygon-zkevm-architecture.md)
- [StarkNet architecture](./starknet-architecture.md)
- [Plonky2](./plonky2.md)

### Blockchain Bridges & Interoperability

- [Blockchain Bridge](./blockchain-bridge.md)
- [Cross-chain Transfers: Implementing a Token Swap from Base Chain to Bitcoin](./cross-chain-transfers-implementing-a-token-swap-from-base-chain-to-bitcoin.md)
- [Ton: Blockchain of blockchains](./ton-blockchain-of-blockchains.md)
- [Ton's base concepts](./ton-core-concept.md)
- [Federated Byzantine](./federated-byzantine.md)

### Oracles & External Data

- [Blockchain oracle](./blockchain-oracle.md)
- [External calls](./external-calls.md)

### Zero-Knowledge Proofs & Privacy

- [¶ Zero-knowledge Proofs](./zero-knowledge-proofs.md)
- [zk-SNARKs](./zk-snarks.md)

### Development Tools & Practices

- [Using Foundry for EVM smart contract development](./using-foundry-for-evm-smart-contract-developement.md)
- [Web3 Development with Foundry](./web3-development-with-foundry.md)
- [Build custom AI Agent with ElizaOS](./build-custom-ai-agent-with-elizaos.md)
- [Blockchain for Designers](./blockchain-for-designers.md)


Explore comprehensive guides on blockchain technology, including foundational concepts, layer 2 scaling, security, smart contracts, zero-knowledge proofs, interoperability, and advanced topics to deepen your understanding and development skills.

§ Blockchain


### What’s OGIF?

OGIF stands for "Oh God It’s Friday." It’s our weekly Friday tradition where members share 10-minute talks. The team hops on Discord to share and discuss diverse topics like software development, engineering patterns, industry trends, finance, entrepreneurship, blockchain, AI, and a mix of other cool stuff. It’s a quick, engaging way to learn something new.

We value the importance of sharing our work with other people at Dwarves. And it's a chance for people who don't work directly on development to feel included in the process.

### Meet the OGIF memo summarizer

Working in collaboration with my colleague @innno\_, we crafted a chatbot using Dify. This bot transcribes YouTube videos and extracts key points from our OGIF sessions. The result? A major boost in our ability to review and reference the knowledge shared during these meetings.

![](assets/how-we-crafted-the-ogif-summarizer-bot-to-streamline-weekly-knowledge-sharing_crafting-ogif-summarize-bot-7.webp)

### How it works?

**YouTube Transcription**: We integrated a YouTube transcription workflow as a function-calling tool for our chatbot.

**Intelligent Summarization**: The chatbot generates structured summaries from the transcribed content using a well-designed prompt.

**Three-Tier Summary Structure**:

1. **Short Summary**: 3-5 key timestamps with brief descriptions of the most important topics.

![](assets/how-we-crafted-the-ogif-summarizer-bot-to-streamline-weekly-knowledge-sharing_crafting-ogif-summarize-bot-1.webp)

2. **Detailed Summary**: Comprehensive timestamps, each with 2-3 bullet points providing in-depth information.

![](assets/how-we-crafted-the-ogif-summarizer-bot-to-streamline-weekly-knowledge-sharing_crafting-ogif-summarize-bot-2.webp)

3. **Languages:** The summary is available in both English and Vietnamese.

![](assets/how-we-crafted-the-ogif-summarizer-bot-to-streamline-weekly-knowledge-sharing_crafting-ogif-summarize-bot-3.webp)

### The prompt

The core of our summarizer is the prompt we’ve meticulously designed. Here’s what it does:

- Generates structured summaries with accurate timestamps.
  ![](assets/how-we-crafted-the-ogif-summarizer-bot-to-streamline-weekly-knowledge-sharing_crafting-ogif-summarize-bot-4.webp)
- Creates clickable links to specific points in the video.
- Offers both a quick overview and detailed insights.

![](assets/how-we-crafted-the-ogif-summarizer-bot-to-streamline-weekly-knowledge-sharing_crafting-ogif-summarize-bot-5.webp)

- Maintains consistent formatting for easy reading.
- Provides a comprehensive overview of the video content.

![](assets/how-we-crafted-the-ogif-summarizer-bot-to-streamline-weekly-knowledge-sharing_crafting-ogif-summarize-bot-6.webp)

### Benefits

- **Time-Saving**: Team members can quickly grasp the main points of a session without watching the entire video.
- **Easy Navigation**: Clickable timestamps for swift access to specific topics of interest.
- **Knowledge Retention**: The structured summary serves as a reliable reference for future use.
- **Improved Accessibility**: Makes the session content more accessible to team members who couldn’t attend live.

### What’s next?

We’re always looking to enhance our OGIF Memo Summarizer. Some future ideas include:

- Integrating automatic tagging for easy topic categorization.
- Implementing a search function across multiple summaries.
- Creating a visual timeline of topics discussed over multiple sessions.

### Wrapping up

The OGIF Memo Summarizer has improved our weekly knowledge-sharing sessions. Using AI, we've made a system that saves time and enhances the value of our Friday office hours.

We recommend other teams try similar tools to streamline their knowledge-sharing. In software engineering, efficient learning and sharing information can give you a big advantage.

Happy coding and happy sharing.


Introducing the OGIF Memo Summarizer, a chatbot we developed using Dify in collaboration with @innno_. This tool transcribes YouTube videos and extracts key points from our Oh God It’s Friday (OGIF) sessions. By providing both short and detailed summaries in English and Vietnamese, it significantly enhances our ability to review and reference the diverse knowledge shared every Friday.

How we crafted the OGIF summarizer bot to streamline weekly knowledge-sharing

In OGIF 41, the team covered key updates on the ICY-BTC swap, GitHub bot automation, MCP-DB system for agent workflows, and progress on the Pocket Turning and Recapable projects and we also shared insights into funding rate arbitrage strategies.

#41 ICY-BTC, GitHub Bot, MCP-DB, Pocket Turing

OGIF Office Hours #41 - ICY-BTC Swap, GitHub Bot, MCP-DB, Pocket Turing, Recapable, and Arbitrage Strategy

In OGIF 39, the team explored React 19 and Deno Deploy updates, database scaling with CI and migrations, Tom’s AI-driven dev workflow, and macro insights on protectionism and globalization trends.

#39 Frontend report, DB Scaling, AI Workflow

OGIF Office Hours #39 - Frontend updates, Database scaling, AI workflow, and Macro insights

In OGIF 38, the team explored Erlang automata, AI and fintech market shifts in Southeast Asia, year-end reflections with team awards, and a new hybrid work direction for 2025.

#38 Erlang automata, AI Trends, Year-End Awards

OGIF Office Hours #38 - Erlang automata p2, market report, DOTY, Year end celebrations 

In OGIF 37, our team dives into AI fine-tuning with an Open AI demo, data archiving for high-traffic apps, and datalake scaling via Notion’s use case. Join us for a session packed with practical insights and collaborative Q&A to boost our technical skills.

#37 AI Fine-tuning, Data archiving, Datalakes

OGIF Office Hours #37 - AI Fine-Tuning, Data Archiving, and Datalake Scaling with Notion


## Record & reward sharing at Dwarves
If you're part of the Dwarves community, you'll notice our culture of continuous learning and knowledge sharing. This culture isn’t just about individual growth; it’s also about building a strong, connected community.

We believe learning is key to success and our goal is to create an environment where it’s prioritized, valued, and rewarded, allowing everyone to grow. 

To support this, we’ve organized a variety of engaging events and activities that encourage and recognize knowledge sharing. Additionally, we allocate a portion of our profits to acknowledge these contributions with awards.

## Our approach to learning and growth
Learning goes hand in hand with a growth mindset. In our fast-moving industry, staying ahead means picking up new knowledge all the time. The more knowledge you share, the more rewards you earn. It’s that simple.

## Monthly pool of up to 2500 ICY for recognized contributions
We’ve set aside a monthly pool of **2500 ICY (around $4000)** to reward those who contribute valuable insights. **70%** of this pool is dedicated to those who actively share knowledge across the community. 

Additionally, we place extra value on contributions in key areas like **AI/LLM**, **Golang**, **Software Architecture**, and **Blockchain**. If you’ve got expertise in these fields, your insights will be especially appreciated and may earn you more ICY.

Check out the [**🧊・earn-icy**](https://discord.com/channels/462663954813157376/1006198672486309908/1239502938918096960) channel to see how we distribute our ICY and get involved.

## How you can participate and make a contribution
If you have something worth sharing? Drop useful links in our research channels such as [**💻・tech**](https://discord.com/channels/462663954813157376/810481888619135046/1281086341995565057), [**💡・til**](https://discord.com/channels/462663954813157376/1001883339046797342/1281097209072320615) to get recognized. Got a topic in mind? Present it in our OGIFs or submit a note to our [**memo**](https://memo.d.foundation/). Community members are welcome to participate too.

We also love open-source work, especially building tools that boost our productivity. If you’re into that, join the force at [**🦄・build**](https://discord.com/channels/462663954813157376/1280726623414390805/1280791483280261161) and start cooking up something great.

We hope this push will keep our learning culture strong and moving forward.

Happy coding and sharing!

Discover how the Dwarves community fosters a culture of continuous learning and knowledge sharing. With a monthly reward pool of up to 2500 ICY, contributors are recognized for sharing valuable insights, especially in areas like AI/LLM, Golang, and more. Get involved and grow with us.

Record and reward sharing at Dwarves


**A Junior Backend Engineer recounts her journey at Dwarves Foundation, from being attracted by their distinctive logo to finding satisfaction in remote work and learning the important lesson that seeking help from supportive team members is key to professional growth.**

![Cat Nguyen - Junior Backend Engineer at Dwarves](assets/notion-image-1744012268919-ye4mt.webp)

My journey with Dwarves began with a glance at their logo during my senior year at Bach Khoa University. While browsing through tech job listings on the university's website, Dwarves' distinctive red logo caught my eye amidst a sea of white logo backgrounds. I read the JD, found it aligned with my aspirations, aced the test, sailed through interviews, and here I am.

Though I've only been with Dwarves for just over a year, my job satisfaction is a solid 10/10. Thanks to remote work, I save 2-3 hours on commuting, granting me more time for fitness, knowledge updates, and quality moments with my parents.

In my year with Dwarves, I've worked on two projects: Console Labs and another client project. Starting at Console, I received big support from **Khoi** and **Tuan Dao**. Even with seemingly simple questions, they patiently explained and provided me with reading materials. I did appreciate it.

And the most memorable experience was tackling the client project, where the difficulty level soared, delving into domains I hadn't touched before. For two weeks in a row, I worked tirelessly until 11PM to complete difficult tasks. As a newcomer, I hesitated to seek guidance initially, only turning to **Bien Vo** for the toughest queries. Then **Thanh Pham** caught up and assigned **Hieu Phan** as my mentor. Lucky me!

Despite the steep learning curve, I realized a crucial lesson: when in doubt, reach out to Dwarves Team for support; their unwavering support propels both personal and professional growth.


Cat Nguyen shares her experience as a Junior Backend Engineer at Dwarves, highlighting the supportive team culture and how asking for help accelerated her growth

Cat Nguyen

#22 Cat Nguyen on team support


At Dwarves, *the core team live and breathe growth*. We believe that growth is our universal language, and we're always striving to improve ourselves, both personally and professionally. It's not just a job for us; it's a way of life. We're hustlers with an extra hat, always pushing ourselves to be better and earn more.

Every time we hire, we're looking for like-minded individuals who share our growth mindset. We want to be with people who are willing to challenge themselves and reach new heights.

Everything we do is centered around growth discussions and opportunity-seeking as a team. We don't believe in playing too much the work-life balance card; instead, we're always on the lookout for new opportunities to elevate.

### **70/50**

Our unspoken culture at Dwarves is called [70/50](https://github.com/dwarvesf/handbook/blob/master/what-we-value.md#7050), and it's all about growth and opportunity. We don't live by a 9-5 schedule; we're committed to putting in an extra 20-50% effort to grow ourselves after our day job is done. It's not mandatory, but it's encouraged. The extra effort we put in increases our chances of reaching new heights, and it's rewarded when the things we build hit the market and bring value to our customers.

As a company that's purely based on technological know-how, we spend our free time on hobby projects or exploring new technologies. It's not just about building our skills; it's about developing our passion for growth.

> We believe that NOT all people can get along with these ideas, but who know if the like-minded will find this place home.

### Retaining people

We don't believe in retaining people by creating a non-challenging environment or looking back. We look to the future, always striving to be better and achieve more. When I sit down with managers from other companies, they often struggle with how to retain employees. But at Dwarves, we don't have that problem because we focus on growth, and that keeps us all around for the right reasons.

So, if you're looking for a place where growth is the norm, come join us at Dwarves. You'll be part of a team that's always hungry for more and committed to reaching new heights. We believe that growth is our universal language, and we can't wait to share it with you.

![](assets/growth-is-our-universal-language_aa45d5d9f6a7dc8c1d87e835a8be0f87_md5.webp)


💡 OGIFs

✨ New memos

🧑‍💻 Life at Dwarves

📝 Changelog

🤝 Open positions

Love what we are doing?