migrate quantem.widget over to https://github.com/electronmicroscopy/quantem.widget

.gitignore

@@ -194,18 +194,3 @@ ipynb-playground/
 CLAUDE.md
 AGENTS.md
 AGENT.md
-
-# widget (JS build artifacts)
-node_modules/
-widget/src/quantem/widget/static/
-
-# widget — local-only (per-developer notebooks, docs scratch, build/test scripts).
-# Track only src/, js/, tests/test_*.py for now.
-widget/.gitignore
-widget/docs/
-widget/notebooks/
-widget/scripts/
-!widget/scripts/build.mjs
-widget/tests/integration/
-widget/tests/snapshots/
-

CONTRIBUTING.md

@@ -18,13 +18,10 @@ Getting started:
 - [install uv](https://docs.astral.sh/uv/getting-started/installation/)
 - `git clone` the repo and `cd` into the directory
 - run `uv sync` to install all the dependencies in an editable environment
-- run `uv sync --all-packages` to also install `quantem.widget` (optional)
 
-For widget developers (requires [Node.js](https://nodejs.org/)):
+### Interactive visualization and widget development
 
-- `cd widget && npm install` to install JS dependencies
-- `npm run build` to build the widget
-- `npm run dev` to watch for changes during development
+The interactive visualization package is maintained separately in the [quantem.widget](https://github.com/electronmicroscopy/quantem.widget) repository. To run the widgets, follow its [installation guide](https://electronmicroscopy.github.io/quantem.widget/install.html). To contribute to the Python, TypeScript, or WebGPU widget code, clone that repository and follow its [contributing guide](https://github.com/electronmicroscopy/quantem.widget/blob/main/CONTRIBUTING.md) for the development setup and checks.
 
 The following will set up the pre-commit and [ruff](https://github.com/astral-sh/ruff) for linting and formatting. These commands only need to be run once when first setting up your dev environment: 
 

CONTRIBUTORS.md

@@ -22,7 +22,6 @@ Contributions are broken down by module:
 - [Arthur McCray](https://github.com/arthurmccray)
 - [Georgios Varnavides](https://github.com/gvarnavi)
 - [Stephanie Ribet](https://github.com/smribet)
-- [Sangjoon Bob Lee](https://github.com/bobleesj)
 
 ## Imaging
 - [Colin Ophus](https://github.com/cophus)
@@ -44,4 +43,4 @@ see the [GitHub contributors graph](https://github.com/electronmicroscopy/quante
 ---
 
 This list is maintained by hand and grouped by contribution history. If your name is missing, 
-listed incorrectly, or you would like it shown differently, please open a pull request or issue.
+listed incorrectly, or you would like it shown differently, please open a pull request or issue.

README.md

@@ -14,7 +14,7 @@
 - **Tomography**: fast and accurate HAADF tomography using implicit representations ([Lim et al., 2025](https://arxiv.org/abs/2512.08113)).
 - **Imaging**: drift correction and lattice analysis for (S)TEM images.
 - **Data structures & I/O**: a unified `Dataset` hierarchy that reads common electron-microscopy formats and serializes to [Zarr](https://zarr.dev/).
-- **Visualization**: publication-quality figures with perceptually-uniform colormaps.
+- **Visualization**: publication-quality figures with perceptually-uniform colormaps; for interactive, GPU-accelerated visualization, see the companion [quantem.widget](https://github.com/electronmicroscopy/quantem.widget) repository.
 - **GPU-accelerated & ML-ready**: a PyTorch backend with neural object representations and multi-GPU / multi-node reconstruction.
 - **Spectroscopy**: GPU-accelerated spectra fitting for EDS and EELS, under development.
 - **Diffraction**: multi-angle precession electron diffraction (MAPED), under development ([Ribet et al., 2025](https://doi.org/10.1093/mam/ozaf103)).
@@ -39,6 +39,8 @@ For custom CUDA kernels that accelerate tomography, ptychography, and io behind
 
 The [quantem-tutorials](https://github.com/electronmicroscopy/quantem-tutorials) repository contains Jupyter notebooks that walk through the main workflows for each module.
 
+For interactive visualization in notebooks, command-line workflows, standalone HTML exports, and browser WebGPU, see [quantem.widget](https://github.com/electronmicroscopy/quantem.widget). Its [documentation](https://electronmicroscopy.github.io/quantem.widget/) covers installation, tutorials, supported backends, and complete visualization workflows.
+
 ## Citing
 
 If you use quantem in your research, please cite this repository as well as the relevant paper(s) for any module(s) that you used:
@@ -49,6 +51,7 @@ If you use quantem in your research, please cite this repository as well as the
 - **Direct ptychography**: Varnavides, G., Bekkevold, J. M., Ribet, S. M., Scott, M. C., Jones, L., & Ophus, C. (2026). *Relaxing Direct Ptychography Sampling Requirements via Parallax Imaging Insights.* Microscopy and Microanalysis, 32(2), ozaf139. https://doi.org/10.1093/mam/ozaf139
 - **Electron tomography (implicit neural representations)**: Lim, C., Casert, C., McCray, A. R. C., Lee, S., Barnum, A., Dionne, J., & Ophus, C. (2025). *Missing Wedge Inpainting and Joint Alignment in Electron Tomography through Implicit Neural Representations.* arXiv:2512.08113. https://arxiv.org/abs/2512.08113
 - **Multi-angle precession electron diffraction (MAPED)**: Ribet, S. M., Dhall, R., Ophus, C., & Bustillo, K. C. (2025). *Multi-angle Precession Electron Diffraction (MAPED): A Versatile Approach to 4D-STEM Precession.* Microscopy and Microanalysis, 31(6), ozaf103. https://doi.org/10.1093/mam/ozaf103
+- **quantEM interactive visualization framework**: Lee, S., et al. (2026). *Interactive Framework for Real-Time 4DSTEM Analysis and Reconstruction.* Microscopy and Microanalysis, 32(Supplement 1), ozag053.941. https://doi.org/10.1093/mam/ozag053.941
 
 
 ## Contributing

pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "hatchling.build"
 addopts = [
     "--import-mode=importlib",
 ]
-testpaths = ["tests", "widget/tests"]
+testpaths = ["tests"]
 
 [tool.ruff.lint]
 select = ["E4","E7","E9","F","I"]
@@ -21,12 +21,6 @@ line-length = 99
 [tool.uv]
 config-settings = { editable_mode = "compat" }
 
-[tool.uv.workspace]
-members = ["widget"]
-
-[tool.uv.sources]
-"quantem.widget" = { workspace = true }
-
 [project]
 name = "quantem"
 version = "0.1.9"
@@ -56,11 +50,6 @@ dependencies = [
   "torchinfo>=1.8.0",
 ]
 
-[project.optional-dependencies]
-widgets = [
-    "quantem.widget",
-]
-
 [tool.hatch.build.targets.sdist]
 # hatchling always includes:
 # pyproject.toml, .gitignore, any README, any LICENSE, AUTHORS