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.
A 529 plan is a tax-advantaged education savings account with tax-free growth. Learn how it works, what it covers, and the 2026 rules that changed everything.
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.
A certificate of deposit (CD) pays a guaranteed fixed rate for locking up your money. Learn how CDs work, current rates, types, penalties, and when to use one.
Learn how to configure Nginx as a reverse proxy on Linux. Covers proxy_pass, headers, SSL termination, WebSocket support, and security hardening with examples.
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.
Learn how to install PostgreSQL on Linux step by step. Covers Ubuntu, Debian, and RHEL with first-login setup, user creation, and remote access config.
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.
Learn how to install K3s on Linux in minutes — single-node and multi-node setup, kubectl access, and deploying your first workload on lightweight Kubernetes.
Learn how to configure UFW firewall on Linux with this complete guide. Secure your Ubuntu or Debian server with simple commands, avoid common mistakes, and implement best practices.
Master the Linux grep command with practical examples and real-world use cases. Learn search techniques, regex patterns, and pro tips to find text in files efficiently.
Learn how to create and manage Linux bash aliases to speed up your terminal. Practical examples for navigation, safety, system admin, and networking shortcuts.
I tested 6 open source password managers on my Linux homelab in 2026—Bitwarden, Vaultwarden, KeePassXC, Proton Pass, and more. Here’s which one I actually kept.
Set up Prometheus, Node Exporter, and Grafana on Linux step by step. Get a live CPU, RAM, and disk monitoring dashboard in under 30 minutes.
Learn how to check listening ports in Linux using ss, netstat, and lsof. Master port monitoring for security and troubleshooting in 2025.
I’m about to save you $100,000. That’s how much I lost making every single mistake on this list. Some traders are smart and learn from others’ mistakes. I’m apparently not that smart – I had to make them all personally, like some kind of masochistic completionist collecting failure achievements. The
Cheap web hosting usually sucks. We all know the drill. You buy a server for $20 a year, and it’s offline half the time. Or the support team takes three days to reply. But lately, one hosting company is changing that narrative. Here’s our review of Racknerd. They have become
I tested 6 browsers on Linux in 2026: Firefox, Brave, LibreWolf, Vivaldi, Chromium, and Ungoogled Chromium. Here’s which one wins for privacy and speed.
Looking for the best Linux video player in 2026? I tested 6 options—VLC, mpv, Celluloid, Haruna, SMPlayer, and Kodi—on my homelab. Here’s what works.
Master Linux output redirection with stdin, stdout, and stderr. Learn pipes, file descriptors, 2>&1, and /dev/null through practical examples every admin needs.
Learn how to use GPG in Linux to encrypt files, sign data, and manage keys. Complete command guide with real examples for sysadmins and beginners.
Discover the best Linux container management tools in 2026. I personally tested Portainer, Dockge, Lazydocker, ctop, Komodo, and Dozzle on my homelab.
I tested 5 popular Linux text editors — Nano, Vim, Neovim, VS Code, and Emacs — so you don’t have to. Here’s what sysadmins actually need in 2026.
Listen, I’m about to teach you the most boring, predictable, grandmother-approved options strategy that’s made me $4,000-$6,000 every single month for the past two years. It’s called an Iron Condor, and despite the badass name that sounds like a metal band or a Marvel villain, it’s about as exciting as
Learn how to check hostname in Linux using hostname, hostnamectl, and configuration files. Master FQDN lookups and hostname management for better server administration.
Master the lsof command in Linux with real-world examples. Learn to troubleshoot network connections, find deleted files eating disk space, and solve production issues fast.
Compare the 5 best Linux tiling window managers in 2026 — Hyprland, Sway, i3, Niri, and dwm. I tested each for performance, config ease, and daily use.
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 how to use the SCP command in Linux to securely transfer files between systems. Includes syntax, real-world examples, troubleshooting tips, and security best practices.
Learn how to use Podman in Linux: install it, run rootless containers, manage images, and integrate with systemd. The Docker alternative that is free forever.
Learn how to configure AppArmor on Linux—check status, create custom profiles, switch between modes, and harden your system with real command examples.
Master the top command in Linux with real-world examples for monitoring CPU, memory, and processes. Complete guide with practical troubleshooting techniques for 2025.
The numbers don’t lie: America is exhausted from swiping. A 2024 Forbes Health survey found that 78% of dating app users feel “emotionally, mentally, or physically exhausted” by them per Global Dating Insights, with 79% of Gen Z reporting dating app burnout. As the digital dating landscape grows increasingly frustrating,
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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