# #roundup 01: Oct 21, 2022

*What happened in building crypto this week?*

By [michaelcjoseph's musings](https://writing.michaelcjoseph.com) · 2022-10-21

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For a first newsletter, this one has a lot packed into it. This week on building crypto:

*   Brian Flynn sparked some interesting discussion on retention and KPIs in crypto. [Link](https://twitter.com/Flynnjamm/status/1581417370110726144).
    
*   One of the best non-financial use cases I’ve seen of a blockchain just launched in India. [Link](https://twitter.com/0xPolygon/status/1580947409382699009).
    
*   Magic Eden decided to make creator royalties optional, which led to some great debates, ideas, and analysis. [Link](https://blog.magiceden.io/magic-eden-going-optional-royalties-and-creator-monetization-hackathon).
    
    *   Zhouxun Yin (Founder of Magic Eden) & Haseeb Qureshi (Dragonfly Capital) debate Li Jin (Variant Fund) & Laura Shin (Journalist). [Link](https://www.youtube.com/watch?v=NwcUu3dhcmw).
        
    *   Beeple explores economic incentives in with NFT royalties. [Link](https://twitter.com/beeple/status/1581351398259597312).
        
    *   Stats breakdown of different types of exchanges and how often they are used. [Link](https://twitter.com/punk9059/status/1581136542726164480).
        
*   w1nt3r launched a guide on how to get better at Solidity development. [Link](https://w1nt3r.mirror.xyz/enD1dorw5t2u_s13MthnsqnhqW03WMY8T7ASdRwxDQg).
    
*   Aptos, another L1 blockchain, launched its mainnet this week. [Link](https://aptoslabs.medium.com/aptos-autumn-is-here-92a8d904eb49).
    
    *   It’s been touted as a Solana killer, but it has not been well received and has had its fair share of problems this week. [Link](https://twitter.com/iamDCinvestor/status/1582345289926864897). [Link](https://twitter.com/ParadigmEng420/status/1582121416601673729). [Link](https://twitter.com/PaulFidika/status/1582386287473876992).
        
*   A16Z launched a new crypto accelerator. [Link](https://twitter.com/a16zcrypto/status/1582425579348848640).
    

That’s it for this week. Enjoy your weekend and check back on Monday for a deep dive on the Rainbow wallet!

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*Originally published on [michaelcjoseph's musings](https://writing.michaelcjoseph.com/roundup-01-oct-21,-2022)*