✓Direct Answer

Yes. Oyma supports both inline hashtags (including nested tags like #work/project) and structured YAML frontmatter properties for rich metadata filtering and organization.

Structured Metadata Meets Fluid Prose

Unstructured prose is effortless to write but challenging to query systematically. Conversely, rigid relational databases force you into restrictive form fields that stifle creativity.

Oyma bridges this divide by combining freeform CommonMark prose with structured YAML frontmatter and hierarchical hashtags.

YAML Frontmatter Properties

Place three hyphens (---) at the very top of any note to define structured properties:

---
title: "Distributed Storage Invariants"
date: 2026-10-09
status: "Active"
priority: "High"
tags: [engineering, distributed-systems, storage]
client: "Acme Corp"
---

In Live Preview, Oyma renders these properties in an elegant, interactive Properties panel at the top of your document. You can add text fields, date pickers, multi-select tags, and checkboxes with a single click.

Hierarchical Nested Hashtags

For quick thematic tagging within prose, insert hashtags anywhere in your text:

  • Single Tags: #meeting, #todo, #architecture
  • Nested Hierarchical Tags: #work/client/acme or #project/apollo/backend

Nested tags allow you to build structured taxonomies. Expanding #work in the sidebar tag tree reveals all child tags cleanly.

Tags Sidebar
├── #architecture (14)
├── #meeting (42)
└── #work
    ├── #client (19)
    │   └── #acme (8)
    └── #internal (23)

Tag-Based Quick Filtering

Press ⌘O and type # to view a frequency-ranked list of all active tags across your vault. Selecting any tag immediately filters your note list to matching documents.

Automated Tag Completion and Metadata Queries

Organizing knowledge through tags and metadata is accelerated by dedicated interface tools:

  • Interactive Tag Dropdown: Typing # in the editor brings up a real-time autocomplete menu showing existing tags and their occurrence counts.
  • Sidebar Tag Browser: The sidebar features a dedicated Tag Browser that displays your entire tag taxonomy as an expandable tree structure.
  • Frontmatter Validation: Oyma checks YAML syntax for formatting errors, ensuring that misaligned indents or missing colons are flagged before saving.
  • Properties Inspection Panel: Toggle the document inspector (⌥⌘I) to view note word counts, character counts, creation timestamps, and YAML attributes in a clean visual panel.

Tag Renaming and Bulk Taxonomy Refactoring

If you ever decide to reorganize your knowledge structure, Oyma supports safe bulk tag renaming. Renaming #client/alpha to #client/beta updates occurrences across all matching notes while maintaining document integrity.

Combined with frontmatter property inspection, tags provide a dual taxonomy: fast inline tagging for spontaneous thoughts, and rigorous YAML metadata for formal project tracking and status dashboards.

Tagging and Properties Invariants

  • Inline Hashtags: #tag and nested hierarchies like #work/client/project.
  • YAML Frontmatter: Demarcated by --- with properties for date, status, author, and tags.
  • Taxonomy Refactoring: Bulk tag renaming across the vault with automatic link updates.
  • Quick Filtering: Press ⌘O and type # to filter notes by tag frequency instantly.

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