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.
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Learn how to use the umask command in Linux to set secure default file permissions. Includes real-world examples, octal notation explained, and security best practices for 2025.
An honest review of the Tria crypto card from a self-custody advocate. Covering the up to 6% cashback, card tiers, pros and cons, and whether this cross-chain neobank card is worth it in 2025.
Learn how to troubleshoot network issues in Linux with a systematic workflow. From DNS failures to packet loss, master the tools every admin needs.
Learn how to use tmux in Linux for persistent sessions, split panes, and better terminal management. Step-by-step guide with real sysadmin examples and configuration tips.
Monitor CPU, memory, disk I/O, and network—historically. Learn how to install sysstat and use the sar command in Linux to analyze past performance.
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 create and manage systemd timers in Linux — a powerful cron alternative with better logging, dependency support, and missed-run recovery.
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 much to save in your emergency fund with this complete guide. Expert advice on building 3-6 months expenses, where to keep it, and avoiding common mistakes.
Master the zip and unzip commands in Linux with practical examples. Learn compression, encryption, cross-platform sharing, and troubleshooting tips.
As a Linux system administrator or enthusiast, securing your remote connections should be at the top of your priority list. SSH (Secure Shell) is the backbone of remote administration for Linux systems, but an improperly configured SSH server can leave your system vulnerable to brute force attacks, unauthorized access, and
Master the Linux date command: formatting output, date arithmetic, Unix timestamps, timezones, and real bash scripting examples for sysadmins.
Okay, let me tell you about the strategy that completely changed my investing game – covered calls. This is the strategy that turned my boring dividend portfolio into a cash-flowing machine that pays me $3,000-5,000 every single month. And before you ask, no, this isn’t some get-rich-quick BS. This is
Learn how to use strace command in Linux to trace system calls, debug processes, and troubleshoot performance issues. Complete guide with real-world examples.
Listen, I’m gonna tell you something that’ll piss off every technical analysis guru on YouTube: you don’t need to memorize 47 different candlestick patterns with ridiculous names like “Three Black Crows” or “Abandoned Baby” to trade successfully. I spent my first year trying to learn every single pattern in Steve
Learn how to check systemd service status in Linux using systemctl commands. Master troubleshooting failed services, monitoring, and managing system services effectively.
Use the Linux SSH config file (~/.ssh/config) to create aliases, configure ProxyJump, and manage multiple servers without typing long commands.
Learn the Linux which command to find executable locations in PATH. Discover when to use which vs type vs whereis, troubleshoot conflicts with -a, and master command resolution.
Master tcpdump to capture and analyze network traffic on Linux. Learn filters, real-world examples, and troubleshooting techniques every sysadmin needs to know.
Learn how to use firewalld in Linux to manage zones, allow services, open ports, and write rich rules. The complete guide for RHEL, Rocky, and Fedora.
Learn how to use Vim in Linux with this beginner-friendly guide. Master essential commands, modes, and navigation to edit files like a pro.
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.
Alright, let’s address the elephant in the room: $1,000 is not enough to day trade properly. There, I said it. Every guru selling you a course about turning $1,000 into $100,000 day trading is full of shit. The PDT rule requires $25,000 for a reason. But you’re here with your
Learn how to use systemctl to manage Linux services. Master start, stop, enable, disable, and troubleshooting commands with real-world examples.
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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