What Are Crypto Perpetual Futures (And How I Made $8,400 Trading Them)
Alexa Velin
January 18, 2026
Root access to modern finance.
Root access to modern finance.
Welcome to our daily blog, your daily dose of inspiration, information about cryptocurrency and financing and everything in-between. Shell & Coin is proudly sponsored by Royal Pheromones.
Ondo Finance tokenizes US Treasuries as yield-bearing crypto tokens. Here’s how USDY, OUSG, and the ONDO token work in 2026.
Stacks (STX) brings smart contracts and DeFi to Bitcoin without changing it. Learn how Proof of Transfer, sBTC, and Stacking let you earn real BTC rewards.
What is Sei Network (SEI) crypto? Learn how this L1 blockchain delivers 12,500 TPS, sub-400ms finality, and DeFi-native speed using Twin-Turbo consensus.
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A SEP IRA lets self-employed workers contribute up to $72,000 tax-deferred in 2026. Here’s how it works, who qualifies, and how to open one today.
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Step-by-step guide to installing Python on Linux. Covers apt, pyenv, venv, and the PEP 668 externally-managed error on Ubuntu, Debian, and RHEL.
Install Redis on Linux the right way — step-by-step commands for Ubuntu, Debian, and RHEL, plus security hardening and kernel tuning every sysadmin needs.
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Install Node.js on Linux the right way — nvm, apt, or NodeSource. Step-by-step commands for Ubuntu, Debian, RHEL, and Arch. Pick the method that fits your workflow.
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Why 74°F in Texas is slowly destroying your health (and why “just open a window” is terrible advice) The Texas Reality Check College Station, Texas: 75% average humidity. 200+ days above 70% humidity. Dew points so high they’re classified as “oppressive.” When someone suggests opening a window on a 71°F
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Learn how to use LVM in Linux to manage storage flexibly. Complete guide covering physical volumes, volume groups, logical volumes, and resizing operations.
Master the df command in Linux to monitor disk space, understand filesystem usage, troubleshoot storage issues, and prevent system failures with practical examples.
Learn how to use logrotate in Linux to automate log rotation, prevent disk space disasters, and keep your servers running smoothly. Step-by-step guide with examples.
I tested the top cryptocurrency exchanges for trading in 2025. Here’s my honest ranking based on fees, security, and features. Binance, Kraken, and Coinbase compared.
Learn how to check network speed in Linux using ethtool, speedtest-cli, and iperf3. Master bandwidth monitoring with real-world examples for 2025.
Learn what inodes are in Linux, why they matter, and how to fix the confusing no space left on device error when df shows plenty of free disk space.
Learn the 7 crypto chart patterns that actually work from a trader who lost 30k before figuring it out. Real pattern trading guide.
Learn the crucial difference between systemctl restart and reload commands. Discover when to use each for zero-downtime updates and proper Linux service management.
I’m gonna tell you about the strategy that lets me make $8,000-$12,000 per month while checking my phone maybe twice a day. No day trading. No staring at charts for 8 hours. No anxiety attacks when SPY drops 0.5%. No waking up at 4 AM for pre-market. This is swing
Learn how to use rsync in Linux with this complete guide. Master file synchronization, remote transfers, backups, and avoid common mistakes that cost hours.
Learn how to edit the sudoers file in Linux using visudo, grant precise sudo permissions, use NOPASSWD, and avoid common misconfigurations that lock you out.
Troubleshooting Common Linux Boot Problems: A Comprehensive Guide Advertisement: Racknerd.promo – Affordable and Reliable Servers Troubleshooting Common Linux Boot Problems: A Comprehensive Guide Booting problems can be frustrating for Linux users. This guide provides a comprehensive approach to troubleshooting common boot issues, helping you get your system back up and
Master the Linux ip command with practical examples. Learn how this modern tool replaced ifconfig for network configuration, routing, and interface management.
Learn how to create and manage Linux bash aliases to speed up your terminal. Practical examples for navigation, safety, system admin, and networking shortcuts.
Master the Linux chmod command with practical examples. Learn symbolic and numeric modes, common permission patterns, and avoid security mistakes. Complete 2025 guide.
Should you max out 401k or pay off debt first? Learn the exact sequence that works, common mistakes that cost thousands, and how to make the right choice for your situation.
Bad Wolf Pheromone Cologne for Men isn’t just a product; it’s an experience. It’s for men who are ready to own their space, exude charisma, and embrace their full potential. Whether you’re making your presence felt in the boardroom or creating unforgettable moments in personal connections, Bad Wolf is the secret weapon that ensures you’ll be remembered.
Learn how to kill a process in Linux with kill, killall, and pkill commands. Complete guide covering SIGTERM vs SIGKILL signals, zombie processes, and best practices for process management.
Learn how to use sysctl in Linux to read, modify, and persist kernel parameters. Covers vm.swappiness, network tuning, security hardening, and /etc/sysctl.conf.
Learn what the FIRE movement is and how Financial Independence Retire Early works. Calculate your FIRE number, understand different FIRE types, and discover if retiring decades early is right for you.
Stellar (XLM) is the payments blockchain powering cross-border remittances, USDC, and the DTCC’s 2027 tokenized securities platform. Here’s how it works.
A spot Bitcoin ETF holds real BTC and trades on stock exchanges. Here’s how it works, what it costs, the top funds to know, and who should actually buy one.
Jupiter (JUP) is Solana’s dominant DEX aggregator with $1T+ in volume and 95% market share. Here’s how it works, what JUP does, and if it’s worth your attention.
Injective (INJ) is a Layer 1 blockchain built from scratch for DeFi finance. Learn how its MEV-resistant order book, burn tokenomics, and RWA markets work.
What is Shiba Inu (SHIB)? Learn how this Ethereum meme coin evolved into a DeFi ecosystem with Shibarium L2, ShibaSwap DEX, and a deflationary burn model.
Zero knowledge proofs let you verify truth without revealing data. Here’s how ZK tech powers Ethereum L2 scaling, DeFi privacy, and the future of crypto in 2026.
Set up MetaMask wallet in minutes. Learn how to install it, secure your seed phrase, add custom networks, and avoid the scams that steal from 500 users daily.
What is Hedera HBAR crypto? Learn how hashgraph consensus, the Governing Council, and enterprise use cases make HBAR different from every other blockchain.
Hot wallet vs cold wallet explained: the key differences, real security risks, and which crypto storage strategy makes sense for your holdings.
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