Inxeoz Docs

EPUB Reader

Thu, 20 Aug 2026 00:00:00 +0000

A small reader that lives entirely in this page. Pick an .epub, and it opens like a real book: turn pages with the buttons, the arrow keys, or a swipe on touch screens, jump around with the table of contents, and adjust the text size. Everything runs in your browser — the file is never uploaded anywhere.

Drop an EPUB here …or click to choose a file. It stays on your device — nothing is uploaded.

Hugo Is More Extensible Than You Think

Sun, 09 Aug 2026 00:00:00 +0000

Hugo markets itself as “a Fast and Flexible Static Site Generator”, but its documentation barely hints at how deep the tool actually goes. Most people touch four commands (hugo, hugo server, hugo new, hugo mod) and call it a day.

This article is a tour of the parts of Hugo that stay hidden — the output format system that gives this very blog a raw-markdown twin for every post, the CLI subcommands most users never discover, the template engine that is secretly a real programming language, and the module system that turns themes into versioned dependencies.

The Telescoping Blueprint: A Simple Way to Derive Every Sum-of-Powers Formula

Fri, 07 Aug 2026 00:00:00 +0000

Introduction: The Engine Behind Every Sum Formula

If you have ever memorized formulas like $2 n (n + 1) $ or $6 n (n + 1) (2 n + 1) $ , you might have wondered: “Where do these actually come from?”

The Ultimate Guide to Bitwise Operations: 20 Green Flags and 20 Red Flags

Fri, 07 Aug 2026 00:00:00 +0000

Bitwise operations are the hidden superpower of low-level programming. They directly manipulate the binary bits of integers, offering unparalleled speed, memory efficiency, and elegant solutions to complex combinatorial problems.

However, they are also the sharpest knife in the drawer—incredibly useful when handled correctly, but devastating when misused.

This comprehensive guide provides a hard-nosed decision framework: 20 Green Flags (situations where bitwise is the perfect tool) and 20 Red Flags (situations where bitwise will destroy your code’s readability, portability, or correctness).

Cloudflare Tunnel Failing on Your Wi-Fi? Use WARP to Fix It

Sun, 26 Jul 2026 00:00:00 +0000

Cloudflare Tunnel creates a secure, outbound-only connection from your device to Cloudflare’s global network. No port forwarding, no public IP, no router changes needed.

But many users hit this error:

dial tcp 198.41.128.100:7844: i/o timeout
failed to dial a quic connection
connection timeout

This happens because many networks block port 7844. Here’s the fix.

Export Only Changed Files From Git While Preserving Folder Structure

Sun, 26 Jul 2026 00:00:00 +0000

Sometimes you need to export only the files changed in Git instead of sharing the entire project. This is useful for deployments, patch updates, code reviews, or sharing incremental changes.

This guide explains how to export only affected files while keeping the original folder structure intact.

What This Method Does

This approach exports:

Modified files
Newly added files
Renamed files

While preserving the original folder hierarchy.

It does NOT export:

Fixing Frappe DocTypes After a Restore Without Source Code

Sun, 26 Jul 2026 00:00:00 +0000

You restored a Frappe database backup and now every custom DocType returns Module Not Found or The resource you are looking for is not available. The database has all the data, but Frappe can’t find the controller files.

This happens because Frappe DocTypes can exist in two states, and the restore process doesn’t always match what Frappe expects. Here’s how to diagnose and fix it.

The Root Cause

Frappe DocTypes have a custom flag:

Getting MotionPro VPN Working on Arch Linux (Every Fix I Found)

Sun, 26 Jul 2026 00:00:00 +0000

MotionPro is the VPN client for Array Networks’ AG SSL VPN appliances. Official builds only target Windows, macOS, Ubuntu, RedHat, and CentOS — there’s no native Arch package from the vendor. This guide walks through getting it fully working on Arch, based on a real troubleshooting session that hit every common failure point.

Overview

Install MotionPro (via AUR preferred, or the Ubuntu .sh installer as fallback)
Fix the daemon (vpnd) so it actually starts and runs with the right privileges
Fix the GUI’s display backend (Qt platform plugin) if it won’t launch
Configure the connection profile correctly
Resolve tunnel/network conflicts with other VPN or DNS-tunneling software

1. Install MotionPro

Preferred: AUR

yay -S motionpro motionpro-gui

This installs proper Arch-native binaries and file locations under /opt/MotionPro/ and /usr/bin/MotionPro.

How to Fix and Automate Waydroid Internet Connectivity on Linux

Sun, 26 Jul 2026 00:00:00 +0000

Waydroid runs Android inside an LXC container on Linux. It’s fast, it’s clean, and then you open a browser and nothing loads.

You get connect: Network is unreachable or ping: unknown host. The Android system boots fine, apps install fine, but the network is dead.

This happens because Waydroid’s virtual bridge (waydroid0) needs proper IP forwarding, firewall exceptions, and DNS configuration to actually reach the outside world. Here’s how to fix it manually, then automate it so you never think about it again.

How to Run Cloudflare WARP and a Corporate VPN Simultaneously on Linux

Sun, 26 Jul 2026 00:00:00 +0000

Modern Linux systems often need to run multiple VPNs at the same time. A common setup: Cloudflare WARP for secure internet access and an enterprise VPN (Array Networks / MotionPro) for internal company servers, where only specific internal IPs should go through the enterprise VPN.

What We’re Solving

Traffic	Route
Internet	Cloudflare WARP
Internal server (10.0.50.10)	MotionPro VPN
Everything else	Unchanged

Environment Overview

VPNs

Enterprise VPN: Array Networks / Ivanti MotionPro
- CLI: vpn_cmdline
- Tunnel interface: tun0
External VPN: Cloudflare WARP
- Interface: CloudflareWARP
- Uses policy routing

Target

Internal SSH server: 10.0.50.10

Part 1: Connecting to MotionPro on Linux

Installation (Arch Linux)

yay -S motionpro

Verify:

How to Set Up *.test Domains Locally Without Breaking Your DNS

Sun, 26 Jul 2026 00:00:00 +0000

Local development environments often need custom domains like myapp.test, api.test, or backend.internal.test. But wildcard resolution (*.test → 127.0.0.1) is tricky.

Most tutorials break DNS by:

Overwriting /etc/resolv.conf
Disabling systemd-resolved
Hijacking port 53
Interfering with libvirt DNS
Using .local (reserved for mDNS)

This article walks through the correct, safe, reversible approach using dnsmasq on a separate port with systemd-resolved split DNS routing.

Goal

We want *.test → 127.0.0.1 without breaking system DNS, VPN DNS, libvirt/QEMU DNS, or systemd-resolved.

How to Set Up CI/CD for Frappe When Your Server Has No Internet

Sun, 26 Jul 2026 00:00:00 +0000

Frappe Bench applications require schema migrations, Docker images, and database backups. When the production server has no internet access, you need a CI/CD pipeline that builds locally, ships artifacts offline, and supports one-click rollback.

This guide covers a Jenkins-based pipeline that does exactly that.

The Problem

Frappe apps require schema migrations
Docker images must be deployed without pulling from the internet
Rollback must restore both code and database
Deployment must be repeatable, auditable, and safe

Architecture

Developer → Git Push
        ↓
Jenkins (Internet Allowed)
        ↓
Build Docker Image
        ↓
docker save → image.tar
        ↓
scp → Offline Server
        ↓
docker load + docker compose up
        ↓
bench migrate

Rollback:

How to Version-Control Everything You Built in Frappe's UI

Sun, 26 Jul 2026 00:00:00 +0000

In Frappe projects, most things are created via the UI: DocTypes, Custom Fields, Client Scripts, Server Scripts, Workflows, Roles, Dashboards, and Master Data. At some point you need to export all of this so it can be version-controlled, installed on another site, or migrated to production.

The missing piece most people forget is converting UI DocTypes into real app DocTypes using custom = 0. Once you do that, the rest of the system works exactly as designed.

My Company Only Has an Android VPN App — Here's How I Made It Work on Linux

Sun, 26 Jul 2026 00:00:00 +0000

Many organizations only provide VPN access through an Android application like MotionPro. If you develop on Linux, you’re stuck — the laptop can’t directly access internal company resources.

Instead of fighting the VPN, use the Android phone as a secure SSH jump host. The phone provides VPN connectivity while your Linux laptop keeps its native development environment.

Architecture

                     Company Network
                    (10.0.0.0/8)
                           │
                    MotionPro VPN
                           │
          ┌──────────────────────────┐
          │ Android Phone            │
          │                          │
          │ MotionPro                │
          │ Termux                   │
          │ OpenSSH Server           │
          │ USB Tethering (RNDIS)    │
          └────────────┬─────────────┘
                       │
               USB Network (RNDIS)
             192.168.42.0/24
                       │
          ┌────────────▼─────────────┐
          │ Linux Laptop             │
          │                          │
          │ SSH                      │
          │ rsync                    │
          │ Git                      │
          │ tmux                     │
          └──────────────────────────┘

Why This Works

No rooting required
No VPN installation on Linux
No company configuration changes
Native Linux development
Works with SSH, rsync, Git, tmux, SCP, SFTP, and VS Code Remote SSH
Portable

Step 1: Install OpenSSH in Termux

On your Android phone:

NGINX in Front of Traefik: Enterprise Frappe Deployments on RHEL

Sun, 26 Jul 2026 00:00:00 +0000

In restricted enterprise environments (VPN-only, SELinux enforcing, firewalld enabled), applications are often exposed on non-standard ports like :8100. This works but leads to poor user experience, security concerns, and scalability limitations.

This article documents a multi reverse proxy architecture that exposes applications using hostnames only, without leaking internal ports, while keeping all security controls enabled.

Target Architecture

Client (VPN)
   |
   | http://site-a.example.com
   |
NGINX (host :80)
   |
   | proxy_pass http://127.0.0.1:8100
   v
Traefik (Docker reverse proxy)
   |
   v
Frappe (site routing by Host header)

Components and Roles

NGINX — Front door. Listens on port 80, routes by hostname.

Strict Vertical Curvy Corners Navigation — TOC Design

Sun, 26 Jul 2026 00:00:00 +0000

This post demonstrates a strict vertical Table of Contents design with smooth cubic Bézier S-curves connecting heading levels. The vertical lines stay perfectly straight (│) while diagonals transition smoothly (╲ or ╱) using cubic Bézier curves with vertically-aligned control points for perfect tangent continuity.

Features Demonstrated

Strict vertical lines (│) at each TOC item position
Smooth S-curve transitions between heading levels using cubic Bézier curves
Vertically-aligned control points for perfect tangent continuity
IntersectionObserver-based ScrollSpy with rootMargin for precise activation
Smooth SVG path animation with transition: d 0.35s cubic-bezier(0.4, 0, 0.2, 1)
Drop shadow glow on active path segment
Sidebar auto-scroll to keep active item visible

Strict Vertical Curvy Corners Navigation

Documentation Guide

Introduction

Welcome to the component documentation. This guide will walk you through setup, configuration, and advanced usage examples.

TOC Design Sample Article

Sun, 26 Jul 2026 00:00:00 +0000

This is a sample article to test the Table of Contents design with headings from H1 through H4.

Introduction

This article demonstrates the Table of Contents (TOC) design with various heading levels. The TOC should display headings from H2 through H4 by default.

What This Tests

This sample covers:

H2 heading rendering
H3 heading nesting
H4 heading depth
TOC navigation behavior

Heading Level 2 - First Section

This is the first H2 section. It contains some introductory content.

How to Set Up Multiple Frappe Benches on One Machine

Tue, 23 Jun 2026 00:00:00 +0000

Run two (or more) Frappe benches side-by-side — each with its own web server, Redis instances, and site — without port conflicts.

Why

Isolate development environments per project or per app.
Run a stable bench alongside an experimental one.
Test different Frappe versions or app branches concurrently.

Overview

Each bench needs its own set of ports for:

Service	Default port	Notes
Web server	8000	`webserver_port` in `common_site_config.json`
Redis cache	13000	`redis_cache.conf` → `port`
Redis queue	11000	`redis_queue.conf` → `port`
Redis socketio	12000	`redis_socketio.conf` → `port` (create it)
SocketIO	9000	`socketio_port` in `common_site_config.json`

Second bench increments each by 1 (or any offset): 8001, 13001, 11001, 12001, 9002.

How to Use FizzBee for Formal Verification of Distributed Systems

Tue, 16 Jun 2026 00:00:00 +0000

FizzBee is a formal specification language and model checker for designing and verifying distributed systems. It uses a Python-like syntax (Starlark) — far more approachable than TLA+ or Alloy while offering the same rigorous state-space exploration.

You write a model of your system, specify invariants (safety) and liveness properties, and FizzBee exhaustively checks every possible state transition to find bugs before you write production code.

Quick Start

Online Playground

No installation needed: https://fizzbee.io/play

How LLMs Actually Work — From Data to Intelligence

Sat, 13 Jun 2026 00:00:00 +0000

A complete guide · From raw text to intelligence

How LLMs
Actually Work

From Data to Intelligence

We start with a pile of internet text and build, step by step, a system that learns hidden patterns between words — then we look inside to see what it learned and how to make it better. Every mechanism explained visually, with things you can click and watch.

This is not about one paper or one model. It's about the full pipeline — tokenization, embeddings, attention, training, inference, and interpretability — that every modern LLM uses.

00 Key Termsconcepts visually explained 01 Foundationneurons, weights, matrices 02 Datatokenization and BPE 03 Meaningembeddings as learned vectors 04 Orderpositions and sequence structure 05 Contextattention, heads, masks 06 MemoryMLPs and residual stream 07 Learningloss, gradients, scale 08 Usefine-tuning and generation 09 Inspectinterpretability and circuits

Swapping Large or Stalled Files with mitmproxy

Mon, 01 Jun 2026 00:00:00 +0000

You’re on a slow network, the JS bundle is 16 MB, and your page won’t finish loading. Or a CDN returns a 504 every third request. You already have the file locally — you just need the browser to use that instead of fetching it again.

mitmproxy can intercept the specific request and swap in a local file transparently. The server never knows, the browser never knows, and the page loads instantly.

Classic 2D Games — Play in Browser

Sun, 31 May 2026 00:00:00 +0000

5 classic arcade games, implemented from scratch in HTML Canvas + JavaScript. No frameworks, no dependencies — just you, the keyboard, and a few hundred lines of game loop.

Select a game

🐍 Snake

Score: 0

Arrow keys to move · P to pause

🧱 Tetris

Score: 0 · Lines: 0

← → move · ↑ rotate · ↓ soft drop · Space hard drop · P pause

🏓 Pong

0 - 0

W/S to move left paddle · ↑/↓ for right (2-player) · Space to serve

🧱 Breakout

Score: 0

← → to move paddle · mouse also works

💣 Minesweeper

Click a cell to start

Left-click to reveal · Right-click to flag

Lightning Fast Android & Gradle Builds

Sun, 31 May 2026 00:00:00 +0000

Waiting 3–5 minutes for every Gradle build is a productivity killer. Here’s every optimisation I apply to cut build times down to seconds — not minutes.

On my machine: 20GB RAM + 12th Gen Intel Core i3 (4 P-cores, no E-cores). These settings are tuned to squeeze every drop of performance out of that hardware.

The One-Shot Config

Drop this into your project-level gradle.properties. Tuned for 20GB RAM + 12th Gen Intel.

Spaceboy Theme: Configuration Reference

Fri, 29 May 2026 00:00:00 +0000

Every parameter can be set in two places. hugo.toml [params] sets the site-wide default. Front matter on a single post overrides it. Front matter always wins.

Typography

Font Family

The font parameter replaces --font-body for the entire page — headings, nav, and body text.

By default (no font parameter), --font-body uses Atkinson Hyperlegible (Google Fonts), a highly-legible sans-serif designed for low-vision readers.

Value	Renders as	Best for
(none)	Atkinson Hyperlegible (default)	General reading, accessibility
`mono`	JetBrains Mono	Tech posts, code-heavy writing
`serif`	Georgia → Charter → Palatino	Stories, novels, essays, research
`sans`	system-ui → Segoe UI → Roboto	Short-form, recipes, reviews
any CSS string	Custom font stack	Total control

font: serif

Note

font: serif also sets --letter-spacing-normal: 0.01em and --line-height-body: 1.9 automatically — both improve serif body readability without any extra config.

Drop Cap

Enlarges the first letter of the first paragraph using CSS ::first-letter. No markup changes needed.

Docker to Setup (D2S) - Frappe Multi-Site Bench

Mon, 25 May 2026 00:00:00 +0000

Step-by-step guide to create and run multiple isolated Frappe sites using Traefik reverse proxy.

Based on frappe_docker.

Architecture

What We Built

Complete isolation: Each site has separate MariaDB, Redis, and application containers
Auto-discovery: Traefik routes based on Host header — no manual port mapping
Scalable: Add unlimited sites without changing existing configuration
Single entrypoint: All sites share one HTTP port (:8100)

Inxeoz Docs

EPUB Reader

Hugo Is More Extensible Than You Think

The Telescoping Blueprint: A Simple Way to Derive Every Sum-of-Powers Formula

Introduction: The Engine Behind Every Sum Formula

The Ultimate Guide to Bitwise Operations: 20 Green Flags and 20 Red Flags

Cloudflare Tunnel Failing on Your Wi-Fi? Use WARP to Fix It

Export Only Changed Files From Git While Preserving Folder Structure

What This Method Does

Fixing Frappe DocTypes After a Restore Without Source Code

The Root Cause

Getting MotionPro VPN Working on Arch Linux (Every Fix I Found)

Overview

1. Install MotionPro

Preferred: AUR

How to Fix and Automate Waydroid Internet Connectivity on Linux

How to Run Cloudflare WARP and a Corporate VPN Simultaneously on Linux

What We’re Solving

Environment Overview

VPNs

Target

Part 1: Connecting to MotionPro on Linux

Installation (Arch Linux)

How to Set Up *.test Domains Locally Without Breaking Your DNS

Goal

How to Set Up CI/CD for Frappe When Your Server Has No Internet

The Problem

Architecture

How to Version-Control Everything You Built in Frappe's UI

My Company Only Has an Android VPN App — Here's How I Made It Work on Linux

Architecture

Why This Works

Step 1: Install OpenSSH in Termux

NGINX in Front of Traefik: Enterprise Frappe Deployments on RHEL

Target Architecture

Components and Roles

Strict Vertical Curvy Corners Navigation — TOC Design

Features Demonstrated

Documentation Guide

Introduction

TOC Design Sample Article

Introduction

What This Tests

Heading Level 2 - First Section

How to Set Up Multiple Frappe Benches on One Machine

Why

Overview

How to Use FizzBee for Formal Verification of Distributed Systems

Quick Start

Online Playground

How LLMs Actually Work — From Data to Intelligence

Swapping Large or Stalled Files with mitmproxy

Classic 2D Games — Play in Browser

Select a game

Lightning Fast Android & Gradle Builds

The One-Shot Config

Spaceboy Theme: Configuration Reference

Typography

Font Family

Drop Cap

Docker to Setup (D2S) - Frappe Multi-Site Bench

Architecture

What We Built

Attention Is All You Need — Explained Simply

data-testid — From Zero to Hero

1. What is data-testid and why do you need it?

Frappe Docker Setup (Custom Image + App)

1. Clone Repository

2. Define Apps (apps.json)

3. Build Custom Image

Recommended (BuildKit)

For Older Docker Versions

4. Environment Configuration (custom.env)

5. Generate Compose File

Offline / Air-Gapped Setup

Neural Network Concepts & Architecture

Network Topology

Rust Patterns: Don’t Peel the Onion

The Onion Analogy

Peeling the Onion (&mut v)

1. What is `data-testid` and why do you need it?

2. Define Apps (`apps.json`)

4. Environment Configuration (`custom.env`)