Add omacal to Development Tools

[x3m]

Description

Adds omacal to Development Tools — a desktop calendar client built for Omarchy.

Type of Contribution

• New resource (theme, tool, tutorial, etc.)

Resource Details

• Resource Name: omacal
• Category: Development Tools
• Link: https://github.com/x3me/omacal
• Description: Desktop calendar for Google, iCloud and CalDAV with live Omarchy theming, a bar widget, and a CLI for terminals and agents.

Omarchy-specific bits: colours come from the current theme and follow omarchy-theme-set live with no restart, and installing also installs (and keeps updated) an omacal.upcoming bar widget for Omarchy 4. Tauri v2 / Rust / Svelte 5, MIT, AppImage + deb + rpm with in-app updates.

Checklist

• I have read the Contributing Guidelines
• I have tested all links and they work
• The resource is relevant to Omarchy
• The description is clear and concise
• I have followed the formatting guidelines
• I have added the resource to the appropriate section
• I have maintained alphabetical order within the section
• The resource meets the quality standards outlined in CONTRIBUTING.md

Additional Notes

Ran the repo's own validation locally before opening this: check-list-order.py (alphabetical), check-min-stars.py (5+ stars), remark and typos all pass. Actively maintained — currently on v0.10.1.