diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index f0ac892..798d414 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -15,7 +15,7 @@ repos:
         args: [--pytest-test-first]
       - id: end-of-file-fixer
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.16.2
+    rev: v0.16.9
     hooks:
       - id: ruff-check
         args: [--fix]
diff --git a/docs/explanation/architecture.md b/docs/explanation/architecture.md
index afc4ab8..e0f9ace 100644
--- a/docs/explanation/architecture.md
+++ b/docs/explanation/architecture.md
@@ -99,11 +99,15 @@ sibling libraries' constructors, then pass them in:
 ```python
 # Scene-building lives in skyscapes
 from skyscapes import from_exovista
+
 scene = from_exovista("path/to/exovista_system.fits")
 
 # Optical-path building lives in optixstuff
 from optixstuff import (
-    OpticalPath, SimplePrimary, ConstantThroughput, IdealDetector,
+    OpticalPath,
+    SimplePrimary,
+    ConstantThroughput,
+    IdealDetector,
 )
 from yippy import EqxCoronagraph
 
@@ -116,8 +120,10 @@ optical_path = OpticalPath(
 
 # coronagraphoto is what turns these into a 2D image
 from coronagraphoto import system_rate, system_readout
+
 rate_map = system_rate(scene, optical_path, ...)
 import jax
+
 image = system_readout(scene, optical_path, jax.random.PRNGKey(0), ...)
 ```
 
diff --git a/docs/explanation/performance.md b/docs/explanation/performance.md
index 03ff3ac..95fc892 100644
--- a/docs/explanation/performance.md
+++ b/docs/explanation/performance.md
@@ -31,9 +31,7 @@ array rather than being memcopied into the compiled binary.
 @eqx.filter_jit
 def simulate_frame(mjd, wavelength_nm, key):
     rate = planet_rate(planet, optical_path, ...)
-    return optical_path.detector.readout_source_electrons(
-        rate, EXPOSURE_S, key
-    )
+    return optical_path.detector.readout_source_electrons(rate, EXPOSURE_S, key)
 ```
 
 ```python
@@ -41,9 +39,7 @@ def simulate_frame(mjd, wavelength_nm, key):
 @eqx.filter_jit
 def simulate_frame(optical_path, planet, mjd, wavelength_nm, key):
     rate = planet_rate(planet, optical_path, ...)
-    return optical_path.detector.readout_source_electrons(
-        rate, EXPOSURE_S, key
-    )
+    return optical_path.detector.readout_source_electrons(rate, EXPOSURE_S, key)
 ```
 
 ## Measured impact
@@ -83,6 +79,7 @@ set the report environment variable before the first compile:
 
 ```python
 import os
+
 os.environ["JAX_CAPTURED_CONSTANTS_REPORT_FRAMES"] = "-1"
 ```
 
diff --git a/docs/explanation/rate_vs_readout.md b/docs/explanation/rate_vs_readout.md
index 9e254d4..ae772de 100644
--- a/docs/explanation/rate_vs_readout.md
+++ b/docs/explanation/rate_vs_readout.md
@@ -58,19 +58,23 @@ import jax
 import equinox as eqx
 from coronagraphoto import system_rate
 
+
 # Differentiable rate pipeline -- gradient flows end-to-end
 @eqx.filter_jit
 def total_electrons(wavelength_nm, scene, optical_path):
     rate_map = system_rate(
-        scene, optical_path,
+        scene,
+        optical_path,
         start_time_jd=2_460_000.0,
         wavelength_nm=wavelength_nm,
         bin_width_nm=50.0,
         telescope_pa_deg=0.0,
-        ecliptic_lat_deg=0.0, solar_lon_deg=135.0,
+        ecliptic_lat_deg=0.0,
+        solar_lon_deg=135.0,
     )
     return rate_map.sum() * EXPOSURE_S
 
+
 grad_fn = eqx.filter_grad(total_electrons)
 ```
 
@@ -101,10 +105,16 @@ import jax
 
 key = jax.random.PRNGKey(0)
 image = system_readout(
-    scene, optical_path, key,
-    start_time_jd=..., exposure_time_s=..., wavelength_nm=...,
-    bin_width_nm=..., telescope_pa_deg=...,
-    ecliptic_lat_deg=..., solar_lon_deg=...,
+    scene,
+    optical_path,
+    key,
+    start_time_jd=...,
+    exposure_time_s=...,
+    wavelength_nm=...,
+    bin_width_nm=...,
+    telescope_pa_deg=...,
+    ecliptic_lat_deg=...,
+    solar_lon_deg=...,
 )
 ```
 
diff --git a/docs/index.md b/docs/index.md
index ec40a5b..8aa92f2 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -56,7 +56,10 @@ post-processing, and analysis live in sibling libraries.
 import jax
 from coronagraphoto import system_readout
 from optixstuff import (
-    OpticalPath, SimplePrimary, IdealDetector, ConstantThroughput,
+    OpticalPath,
+    SimplePrimary,
+    IdealDetector,
+    ConstantThroughput,
 )
 from skyscapes import from_exovista
 from yippy import EqxCoronagraph
@@ -69,12 +72,16 @@ optical_path = OpticalPath(
     detector=IdealDetector(pixel_scale_arcsec=0.01, shape=(512, 512)),
 )
 image = system_readout(
-    scene, optical_path, jax.random.PRNGKey(0),
+    scene,
+    optical_path,
+    jax.random.PRNGKey(0),
     start_time_jd=2_460_000.0,
     exposure_time_s=3600.0,
-    wavelength_nm=550.0, bin_width_nm=50.0,
+    wavelength_nm=550.0,
+    bin_width_nm=50.0,
     telescope_pa_deg=0.0,
-    ecliptic_lat_deg=0.0, solar_lon_deg=135.0,
+    ecliptic_lat_deg=0.0,
+    solar_lon_deg=135.0,
 )
 ```
 
diff --git a/docs/installation.md b/docs/installation.md
index 363ef47..71566bf 100644
--- a/docs/installation.md
+++ b/docs/installation.md
@@ -39,8 +39,9 @@ loaded:
 
 ```python
 import jax
-print(jax.default_backend())             # 'gpu'
-print(jax.config.read("jax_enable_x64")) # True if you enabled it
+
+print(jax.default_backend())  # 'gpu'
+print(jax.config.read("jax_enable_x64"))  # True if you enabled it
 ```
 
 If `default_backend()` reports `gpu` but the CUDA plugin warned about
@@ -81,6 +82,7 @@ get the workspace-editable versions.
 
 ```python
 import coronagraphoto
+
 print(coronagraphoto.__version__)
 ```