Configuration

Config File Location

LineSolv stores its configuration in a TOML file at:

Platform	Path
Linux	~/.config/neostore/linesolv/config.toml
macOS	~/Library/Application Support/neostore/linesolv/config.toml
Windows	%APPDATA%/neostore/linesolv/config.toml

The config file is created automatically on first launch with default values.

Config File Format

The configuration file uses TOML format. A typical config.toml looks like:

# LineSolv Configuration

[app]
theme = "dark"
version = "0.17.0"

[notes]
last_active = "abc123-def456"
sort_by = "updated"

[behavior]
delete_without_confirm = "false"

[settings]
font_size = "16"
font_family = "-apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif"
shortcut_overrides = "{}"
opacity = "0.95"
line_numbers_enabled = "true"
result_panel_enabled = "true"
line_wrap_enabled = "true"
autocomplete_enabled = "true"
animations_enabled = "true"
toast_enabled = "true"
ui_style = "default"
theme_manually_set = "false"

Sections

[app]

Controls application-level preferences.

Key	Type	Default	Description
theme	string	"dark"	Active theme. Options: dark, light, neon, red, obsidian, plasma, blood, midnight, aurora, mono, frost, prism, lavender, sage, warm-light, blue-trust-dark, blue-trust-light, orange-energy-dark, orange-energy-light, green-growth-dark, green-growth-light, yellow-optimism-dark, yellow-optimism-light, purple-innovation-dark, purple-innovation-light, red-passion-dark, red-passion-light. Plugins may add more.
version	string	—	Last-run LineSolv version. Managed automatically.

[notes]

Controls notes panel behavior.

Key	Type	Default	Description
last_active	string	""	UUID of the last active note. Set automatically when switching notes.
sort_by	string	"updated"	Note sort order. Currently only "updated" is used (sorts by position then updated_at).

[behavior]

Controls interaction preferences.

Key	Type	Default	Description
delete_without_confirm	string	"false"	When "true", the delete confirmation dialog is suppressed and notes are deleted immediately.

[settings]

Controls display and input preferences.

Key	Type	Default	Description
font_size	string	"16"	Calculator font size in pixels. Applied to the input area, gutter, and results column.
font_family	string	"-apple-system, ..."	CSS font-family stack for the calculator text.
shortcut_overrides	string	"{}"	JSON-encoded map of keyboard shortcut overrides. Example: "{\"toggleNotes\":\"Ctrl+Shift+B\"}".
opacity	string	"0.95"	Window opacity (30%–100%). "1.0" is fully opaque.
line_numbers_enabled	string	"true"	Show line numbers in the input area.
result_panel_enabled	string	"true"	Show the results column on the right side.
line_wrap_enabled	string	"true"	Enable word wrapping in the editor.
autocomplete_enabled	string	"true"	Enable variable/function autocomplete suggestions.
animations_enabled	string	"true"	Enable UI animations (transitions, toast slide-ins).
toast_enabled	string	"true"	Show toast notifications for actions and errors.
ui_style	string	"default"	UI style. Options: default, glass, material, alivated, neon.
theme_manually_set	string	"false"	Whether the user manually selected a theme (vs. auto-selected by UI style).
noise	string	"0.0"	Background noise overlay intensity (0.0 = off, higher = more visible grain).
context_menu_notes	string	"true"	Show the context menu when right-clicking notes in the sidebar.
context_menu_folders	string	"true"	Show the context menu when right-clicking folders in the sidebar.
drag_and_drop	string	"true"	Enable drag and drop for reordering notes and folders in the sidebar.
confirm_dialog	string	"true"	Show confirmation dialogs for destructive actions (delete, overwrite, etc.).

Data Directory

All persistent data (database, config, plugin state) is stored in:

Platform	Path
Linux	~/.config/neostore/linesolv/
macOS	~/Library/Application Support/neostore/linesolv/
Windows	%APPDATA%/neostore/linesolv/

Contents:

neostore/linesolv/
├── config.toml          # Configuration file
├── linesolv.db          # SQLite database (notes + currency cache)
└── plugins/             # Installed plugins (one subdirectory each)
    ├── finance/
    │   └── plugin.json
    └── statistics/
        └── plugin.json

Database

LineSolv uses SQLite for persistence. The database file is linesolv.db in the data directory.

notes Table

Column	Type	Description
id	TEXT (UUID)	Primary key
name	TEXT	Note display name
content	TEXT	Note content (one calculation per line)
created_at	INTEGER	Unix timestamp in milliseconds
updated_at	INTEGER	Unix timestamp in milliseconds
position	INTEGER	Sort order index (0-based)

Index: idx_notes_sort on (position, updated_at).

currency_cache Table

Column	Type	Description
rates	TEXT	JSON-encoded map[string]float64 of currency rates
updated_at	INTEGER	Unix timestamp in milliseconds of last fetch

Currency rates are fetched from a live API and cached locally. The cache is updated when rates are older than a threshold.

Plugin Directory

Installed plugins live under the plugins/ subdirectory of the data directory. Each plugin is a subdirectory containing a plugin.json manifest.

Platform	Path
Linux	~/.config/neostore/linesolv/plugins/
macOS	~/Library/Application Support/neostore/linesolv/plugins/
Windows	%APPDATA%/neostore/linesolv/plugins/

Currency Cache

Currency exchange rates are cached in the currency_cache SQLite table. The cache stores a JSON map of rates (e.g., {"USD": 1, "EUR": 0.92, "GBP": 0.79, ...}) along with a timestamp of the last update.

The cache is checked before making an API request. If the cached rates are fresh enough, the cached data is used. On cache miss or expiry, fresh rates are fetched and saved.

Resetting Configuration

To reset LineSolv to defaults:

1. Quit LineSolv
2. Delete (or rename) the config file:

rm ~/.config/neostore/linesolv/config.toml

3. Optionally, delete the entire data directory to also reset notes and cached data:

rm -rf ~/.config/neostore/linesolv

4. Launch LineSolv — it will recreate the config with defaults and create a fresh database

Environment Variables

LineSolv does not currently use environment variables for configuration. All settings are managed through the config.toml file and the in-app Settings dialog.