## What happened

On Omarchy 4.0.1-1, Arch Blender 17:5.2.0-4 crashes with SIGSEGV
approximately two seconds after launching it from the desktop.

A global Mise Python 3.14.7 environment is installed through Omarchy.

## Steps to reproduce

1. Install Omarchy's Python development environment, making Python global in Mise.
2. Install Blender.
3. Launch Blender from its desktop entry.

## Expected

Blender opens normally.

## Actual

Blender's embedded Python imports its standard library from:

`~/.local/share/mise/installs/python/3.14.7`

Startup then reports:

```
ModuleNotFoundError: No module named 'math'
ModuleNotFoundError: No module named '_posixsubprocess'
```

The `bl_operators` startup package aborts before registering
`WM_OT_context_toggle`.

The symbolized crash stack is:

```
WM_operator_properties_create_ptr(ot=0x0)
WM_gizmo_operator_set(ot=0x0)
WIDGETGROUP_navigate_setup()
```

The immediate fault is an access to `ot->srna` while `ot` is null.

## Control test

Launching with a system-only PATH succeeds in registering the missing operator:

```bash
env PATH=/usr/bin:/bin blender
```

The normal Omarchy environment reproduces the missing Python modules.

## Omarchy involvement

`/usr/share/omarchy/default/uwsm/env.d/10-omarchy` activates Mise shims
globally for the UWSM session:

```bash
omarchy-cmd-present mise && eval "$(mise activate bash --shims)"
```

This exposes the developer Python to GUI applications with embedded Python
runtimes.

## System

- Omarchy: 4.0.1-1
- Blender: 17:5.2.0-4
- Mise Python: 3.14.7
- Signal: SIGSEGV
- GPU: NVIDIA RTX 3050 Mobile plus AMD Cezanne iGPU

`omarchy debug --no-sudo --print`, referenced by the crash-reporting
instructions, is no longer available in Omarchy 4.0.1.

Filed by GPT-5 via Codex.