Open-source utilities I’ve built in Rust and Go to solve everyday operational and workflow headaches.

1. nettui — Native macOS Network TUI in Rust

GitHub: jdansak/OSX_network_TUI · Read the full project article →

A native, compiled Rust terminal user interface (TUI) for inspecting, controlling, and configuring macOS network settings—wired interfaces, Wi-Fi connections, VPN tunnels, and 802.1Q VLANs—without clicking through nested System Settings panes.

Built with ratatui, Apple’s CoreWLAN and CoreLocation frameworks (via objc2), getifaddrs(3), /usr/sbin/networksetup, and /usr/sbin/scutil. Zero Python or shell scripts.

nettui Tab 1 — Interfaces, VPN Tunnels, and 802.1Q VLANs

Key Capabilities

  • Wired & Wireless Services (1 Interfaces): Live link state, BSD device names (en0, en7, vlan0, utun*), interactive IPv4 modal (DHCP, Manual, Manual with DHCP Router), custom DNS & search domains, DHCP lease renewal, IPv6 toggle, and MTU tuning.
  • VPN Tunnel Control (1 Interfaces): Integrates with scutil --nc to inspect and toggle Tailscale, WireGuard, IKEv2, L2TP, and IPSec tunnels directly from the keyboard (c).
  • 802.1Q VLAN Management (1 Interfaces): Create (v), re-tag (g), and delete (x) virtual 802.1Q VLAN interfaces (1–4094) on any physical parent adapter.
  • Wi-Fi Telemetry & Scanner (2 Wi-Fi): Live RSSI, noise floor, SNR, PHY mode (802.11ax), channel width/band, nearby AP scanner (s), and macOS Keychain network joining—using an embedded Mach-O __TEXT,__info_plist section so macOS Sonoma/Sequoia grants CoreLocation access to unredacted SSIDs.

nettui Tab 2 — Live CoreWLAN Telemetry & Wi-Fi Scanner

git clone https://github.com/jdansak/OSX_network_TUI.git
cd OSX_network_TUI
cargo build --release
./target/release/nettui

2. canvas-scraper — Canvas LMS Gradebook CLI & Web Dashboard (Go)

GitHub: jdansak/Canvas-Scraper · Latest Releases (macOS / Linux / Windows) · Read the full project article →

A standalone Go tool that extracts courses, overall grades, category weights (Tests 55%, Quizzes 30%, Homework 15%), and individual assignment submissions from any Canvas LMS instance (https://<school>.instructure.com). Built with first-class support for Parent / Observer accounts observing multiple students.

canvas-scraper Terminal CLI Output

Key Capabilities

  • Two-Tier Session & Data Caching: Authenticates once via headless Chrome (chromedp—or --headed for MFA/2FA), saves Playwright-compatible cookies to storage_state.json, and executes subsequent fetches directly over Go’s native HTTP client with local CACHE_TIMER persistence (.cache_raw.json).
  • Interactive Single-File HTML Dashboard (--web): Generates a dependency-free HTML5 gradebook dashboard with automatic Light/Dark mode, grade badges, and per-course tables.
  • AI-Ready Markdown (--markdown), CSV & JSON Exports: Produces canvas_grades.md with pre-extracted missing/late action items alongside courses_summary.csv, assignment_weights.csv, assignments_detail.csv, and canvas_grades.json.
  • Instant Filtering & Sorting: Filter cached results in milliseconds by --student, --course, --due-within 7d, --missing-days 2, --below 75, --min-weight 30, or --status missing,late, and sort by status, score, grade, date, or weight.

canvas-scraper –web Interactive Dark Mode HTML Report

# Run with status urgency sorting and open the interactive web dashboard
./canvas-scraper --sort status --web

# Show only missing/overdue assignments or graded items below 75%
./canvas-scraper --missing-days 1
./canvas-scraper --below 75 --min-weight 30