# Environment Variables

# Environment Variables

## OTUI_TS_STYLE_WARN

Enable warnings for missing syntax styles

**Type:** `string`  
**Default:** `false`

## OTUI_TREE_SITTER_WORKER_PATH

Path to the TreeSitter worker

**Type:** `string`  
**Default:** `""`

## XDG_CONFIG_HOME

Base directory for user-specific configuration files

**Type:** `string`  
**Default:** `""`

## XDG_DATA_HOME

Base directory for user-specific data files

**Type:** `string`  
**Default:** `""`

## OTUI_DEBUG_FFI

Enable debug logging for the FFI bindings.

**Type:** `boolean`  
**Default:** `false`

## OTUI_SHOW_STATS

Show the debug overlay at startup.

**Type:** `boolean`  
**Default:** `false`

## OTUI_TRACE_FFI

Enable tracing for the FFI bindings.

**Type:** `boolean`  
**Default:** `false`

## OPENTUI_FORCE_WCWIDTH

Use wcwidth for character width calculations

**Type:** `boolean`  
**Default:** `false`

## OPENTUI_FORCE_UNICODE

Force Mode 2026 Unicode support in terminal capabilities

**Type:** `boolean`  
**Default:** `false`

## OPENTUI_NO_GRAPHICS

Disable Kitty graphics protocol detection

**Type:** `boolean`  
**Default:** `false`

## OPENTUI_FORCE_NOZWJ

Use no_zwj width method (Unicode without ZWJ joining)

**Type:** `boolean`  
**Default:** `false`

## OPENTUI_FORCE_EXPLICIT_WIDTH

Force explicit width capability in terminal to true or false. Set to "true" or "1" to enable, "false" or "0" to disable. When set to "false" or "0", also skips sending OSC 66 detection queries to prevent artifacts on older terminals (e.g., GNOME Terminal).

**Type:** `string`
**Values:** `"true"`, `"1"`, `"false"`, `"0"`

## OTUI_USE_CONSOLE

Whether to use the console. Will not capture console output if set to false.

**Type:** `boolean`  
**Default:** `true`

## SHOW_CONSOLE

Show the console at startup if set to true.

**Type:** `boolean`  
**Default:** `false`

## OTUI_DUMP_CAPTURES

Dump captured output when the renderer exits.

**Type:** `boolean`  
**Default:** `false`

## OTUI_NO_NATIVE_RENDER

Disable native rendering. This will not actually output ansi and is useful for debugging.

**Type:** `boolean`  
**Default:** `false`

## OTUI_USE_ALTERNATE_SCREEN

Whether to use the console. Will not capture console output if set to false.

**Type:** `boolean`  
**Default:** `true`

## OTUI_OVERRIDE_STDOUT

Override the stdout stream. This is useful for debugging.

**Type:** `boolean`  
**Default:** `true`

## OTUI_DEBUG

Enable debug mode to capture all raw input for debugging purposes.

**Type:** `boolean`  
**Default:** `false`

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_generated via packages/core/dev/print-env-vars.ts_