How are you, hacker? How are you, hacker? 🪐 What’s happening in tech today, September 21, 2025? The
           HackerNoon Newsletter
          brings the HackerNoon 
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          straight to your inbox.
          On this day,
          
            Malta's Independence Day in 1964,  U.S.A. Neutrality Acts in 1939,  Belize Gained Full Independence in 1981, 
          
          and  we present you with these top quality stories. 
          
            From 
        Remote Work Reality Check: Malta, Madeira and the Canaries
       to 
        Terraforming Mars Could Save Earth (or Doom Us All),
       let’s dive right in. HackerNoon Newsletter homepage On this day, Malta's Independence Day U.S.A. Neutrality Acts Belize Gained Full Independence Remote Work Reality Check: Malta, Madeira and the Canaries Remote Work Reality Check: Malta, Madeira and the Canaries Terraforming Mars Could Save Earth (or Doom Us All) Terraforming Mars Could Save Earth (or Doom Us All) Can You Spend Crypto Without Selling It? Inside The ether.fi Cash Card’s “Never Sell” Revolution Can You Spend Crypto Without Selling It? Inside The ether.fi Cash Card’s “Never Sell” Revolution By @ishanpandey [ 10 Min read ] In-depth review of the Ether.Fi Cash Card – a DeFi-driven Visa that lets you spend crypto without selling it. Read More. @ishanpandey Read More. How Evergen Scaled Renewable Monitoring with TigerData (TimescaleDB) and Slashed Infrastructure Cost How Evergen Scaled Renewable Monitoring with TigerData (TimescaleDB) and Slashed Infrastructure Cost By @tigerdata [ 9 Min read ] How Evergen scaled renewable monitoring by moving from MongoDB to TigerData (TimescaleDB)—cutting infra use >50%, speeding queries <500 ms,  centralizing data. Read More. @tigerdata Read More. From Postgres to ScyllaDB: How Coralogix Achieved 349x Faster Queries From Postgres to ScyllaDB: How Coralogix Achieved 349x Faster Queries By @scylladb [ 8 Min read ] Coralogix boosted query speeds 349x by migrating from PostgreSQL to ScyllaDB, cutting latency from 30s to 86ms with smart data modeling. Read More. @scylladb Read More. Remote Work Reality Check: Malta, Madeira and the Canaries Remote Work Reality Check: Malta, Madeira and the Canaries By @socialdiscoverygroup [ 4 Min read ] Remote Work in Paradise? 4 Years, 3 Islands, 1 Honest Guide. Discover the real trade-offs of Malta, Madeira  Canary Islands for digital nomads.  Read More. @socialdiscoverygroup Read More. Cypherpunks Write Code: Zooko Wilcox  Zcash Cypherpunks Write Code: Zooko Wilcox  Zcash By @obyte [ 6 Min read ] Zooko Wilcox grew up coding and questioning systems, and that path led him to create the privacy coin Zcash. Lets see more of this story! Read More. @obyte Read More. Why a Decentralized Internet is Inevitable (or Not) by 2030 Why a Decentralized Internet is Inevitable (or Not) by 2030 By @awesomemike [ 8 Min read ] Explore the arguments for and against a decentralized internet by 2030, examining technology, regulation, and societal impact shaping its future. Read More. @awesomemike Read More. Terraforming Mars Could Save Earth (or Doom Us All) Terraforming Mars Could Save Earth (or Doom Us All) By @kingdavvd [ 6 Min read ] Explore how space technology helps fight climate change, from satellites tracking emissions to innovations driving sustainability. Read More. @kingdavvd Read More. Bitcoin Highs Bring Familiar Questions, but Discipline Outlasts Hype Bitcoin Highs Bring Familiar Questions, but Discipline Outlasts Hype By @paulquickenden [ 3 Min read ] Bitcoin has hit a new high price - but is it the top? What could push it higher or lower? Heres a steady, hype-free take on reading the signals  Read More. @paulquickenden Read More. 🧑‍💻 What happened in your world this week? It's been said that
          writing can help consolidate technical knowledge,
          establish credibility,
           and contribute to emerging community standards.
          Feeling stuck? We got you covered ⬇️⬇️⬇️ writing can help consolidate technical knowledge establish credibility and contribute to emerging community standards ANSWER THESE GREATEST INTERVIEW QUESTIONS OF ALL TIME ANSWER THESE GREATEST INTERVIEW QUESTIONS OF ALL TIME We hope you enjoy this worth of free reading material. Feel free to forward this email to a nerdy friend who'll love you for it.See you on Planet Internet! With love, 
 The HackerNoon Team ✌️

The HackerNoon Newsletter: 10 Influential Women in The AI Space (9/22/2025)

The HackerNoon Newsletter: Are Blockchain Communities Inevitable? (9/20/2025)

What's New in the HackerNoon Newsletter?

The HackerNoon Newsletter: Cypherpunks Write Code: Zooko Wilcox Zcash (9/21/2025)

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