Shell & Coin Blog
Every Linux guide, crypto explainer and review we have published, newest first.
-
What Is Ondo Finance (ONDO): The Protocol Bringing US Treasuries to DeFi
Ondo Finance tokenizes US Treasuries as yield-bearing crypto tokens. Here's how USDY, OUSG, and the ONDO token work in 2026.
-
Best Linux VPN Clients in 2026: 5 I Tested for Privacy and Speed
Best Linux VPN clients in 2026. I tested Mullvad, ProtonVPN, Surfshark, NordVPN, and ExpressVPN. Here's the honest verdict from my homelab.
-
What Is Stacks (STX) Crypto: The Bitcoin Smart Contract Layer Explained
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 Crypto: The Fastest L1 Built for Finance
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.
-
How to Configure Nginx as a Reverse Proxy on Linux
Learn how to configure Nginx as a reverse proxy on Linux. Covers proxy_pass, headers, SSL termination, WebSocket support, and security hardening with examples.
-
How to Install Python on Linux (Ubuntu, Debian, and RHEL)
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.
-
What Is a 529 Plan: The Tax-Advantaged Education Savings Account Explained
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.
-
How to Install Redis on Linux (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.
-
What Is a SEP IRA: The Self-Employed Retirement Account Explained
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.
-
How to Install PostgreSQL on Linux (Ubuntu, Debian, and RHEL)
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.
-
What Is a Certificate of Deposit (CD): Guaranteed Returns Explained
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.
-
How to Install Node.js on Linux: 3 Methods, 1 Right Answer
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.
-
Best Linux Remote Desktop Tools in 2026: 6 I Tested on My Homelab
Tested 6 Linux remote desktop tools in 2026 on my homelab: RustDesk, Remmina, XRDP, NoMachine, TigerVNC, and GNOME Remote Desktop — with honest pros/cons.
-
What Is The Graph (GRT) Crypto: The Indexing Protocol Behind Every Major DeFi App
The Graph (GRT) is the indexing protocol powering most of DeFi. Learn how subgraphs, indexers, curators, and GRT tokenomics actually work.
-
How to Install K3s on Linux: Lightweight Kubernetes for Your Homelab
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.
-
What Is Stellar (XLM) Crypto: Payments, Stablecoins, and DTCC
Stellar (XLM) is the payments blockchain powering cross-border remittances, USDC, and the DTCC's 2027 tokenized securities platform. Here's how it works.
-
Best Linux Video Player in 2026: 6 I Tested on My Homelab
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.
-
How to Set Up Samba on Linux: Share Files With Windows and Linux Clients
Learn how to set up Samba on Linux step by step — smb.conf, user setup, firewall rules, SELinux context, and connecting Windows and Linux clients.
-
What Is a Spot Bitcoin ETF: How It Works, Costs, and Who It’s For
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…
-
Best Linux Terminal Multiplexer in 2026: tmux, Zellij, Screen, and Byobu Compared
I tested 4 Linux terminal multiplexers in 2026 — tmux, Zellij, GNU Screen, and Byobu — ranked by real sysadmin workflows and homelab use.
