diff --git a/.readthedocs.yml b/.readthedocs.yml
index 1ba5d0f4b..e1054f7e6 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -7,9 +7,13 @@ build:
   jobs:
     create_environment:
       - asdf plugin add pixi
-      - asdf install pixi latest
-      - asdf global pixi latest
+      - asdf install pixi 0.83.0
+      - asdf global pixi 0.83.0
+    install:
+      - pixi install --locked -e docs
     post_build:
-      - pixi run -e docs build-docs
+      - pixi run --locked -e docs build-docs
+      # The exporter can log a failed Markdown subprocess without failing Sphinx.
+      - test -s docs/build/html/llms.txt
       - mkdir --parents $READTHEDOCS_OUTPUT/html/
       - cp -a docs/build/html/. "$READTHEDOCS_OUTPUT/html" && rm -r docs/build
diff --git a/docs/source/conf.py b/docs/source/conf.py
index e61820ac0..65a04737a 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -51,9 +51,16 @@
     "sphinx_design",
     "sphinxcontrib.mermaid",
     "sphinx_llm.txt",
-    "sphinx_llms_txt",
 ]
 
+# Reuse the HTML doctrees so Markdown generation does not execute notebooks again.
+llms_txt_build_parallel = False
+llms_txt_full_build = False
+llms_txt_description = (
+    "Documentation for optimagic, a Python package for numerical optimization."
+)
+markdown_http_base = os.environ.get("READTHEDOCS_CANONICAL_URL", "")
+
 myst_enable_extensions = [
     "colon_fence",
     "dollarmath",
@@ -174,6 +181,12 @@
 # -- Options for myst-nb  ----------------------------------------
 nb_execution_mode = "force"  # "off", "force", "cache", "auto"
 nb_execution_allow_errors = False
+nb_execution_raise_on_error = True
+# Preserve notebook text outputs in sphinx-llm's Markdown builder.
+nb_mime_priority_overrides = [
+    ("llms-markdown", "text/markdown", 10),
+    ("llms-markdown", "text/plain", 20),
+]
 nb_merge_streams = True
 nb_scroll_outputs = True
 
diff --git a/docs/source/how_to/how_to_add_optimizers.ipynb b/docs/source/how_to/how_to_add_optimizers.ipynb
index 86f926743..82e466dd0 100644
--- a/docs/source/how_to/how_to_add_optimizers.ipynb
+++ b/docs/source/how_to/how_to_add_optimizers.ipynb
@@ -421,10 +421,13 @@
     "    needs_jac=False,\n",
     "    # does the optimizer need the hessian? -> no, gaco is derivative free\n",
     "    needs_hess=False,\n",
+    "    # does the optimizer require finite bounds? -> yes\n",
+    "    needs_bounds=True,\n",
     "    # does the optimizer support parallelism? -> yes\n",
     "    supports_parallelism=True,\n",
     "    # does the optimizer support bounds? -> yes\n",
     "    supports_bounds=True,\n",
+    "    supports_infinite_bounds=False,\n",
     "    # does the optimizer support linear constraints? -> no\n",
     "    supports_linear_constraints=False,\n",
     "    # does the optimizer support nonlinear constraints? -> no\n",
diff --git a/docs/source/index.md b/docs/source/index.md
index 20b5a20d5..d6fd69749 100644
--- a/docs/source/index.md
+++ b/docs/source/index.md
@@ -1,4 +1,4 @@
-# 
+# optimagic
 
 <div style="padding-top: 50px;">
 </div>
diff --git a/pixi.lock b/pixi.lock
index b7711dda6..b01f56ed4 100644
--- a/pixi.lock
+++ b/pixi.lock
@@ -1242,9 +1242,8 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-basic-ng-1.0.0b2-pyhd8ed1ab_3.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-copybutton-0.5.2-pyhd8ed1ab_1.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-design-0.7.0-pyhd8ed1ab_0.conda
-      - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-llm-0.3.0-pyhcf101f3_0.conda
-      - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-llms-txt-0.7.1-pyhd8ed1ab_0.conda
-      - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-markdown-builder-0.6.9-pyhd8ed1ab_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-llm-1.1.0-pyh5ded981_1.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-markdown-builder-0.6.11-pyh5ded981_1.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/sphinxcontrib-applehelp-2.0.0-pyhd8ed1ab_1.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/sphinxcontrib-bibtex-2.6.5-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/sphinxcontrib-devhelp-2.0.0-pyhd8ed1ab_1.conda
@@ -1444,9 +1443,8 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-basic-ng-1.0.0b2-pyhd8ed1ab_3.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-copybutton-0.5.2-pyhd8ed1ab_1.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-design-0.7.0-pyhd8ed1ab_0.conda
-      - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-llm-0.3.0-pyhcf101f3_0.conda
-      - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-llms-txt-0.7.1-pyhd8ed1ab_0.conda
-      - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-markdown-builder-0.6.9-pyhd8ed1ab_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-llm-1.1.0-pyh5ded981_1.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-markdown-builder-0.6.11-pyh5ded981_1.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/sphinxcontrib-applehelp-2.0.0-pyhd8ed1ab_1.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/sphinxcontrib-bibtex-2.6.5-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/sphinxcontrib-devhelp-2.0.0-pyhd8ed1ab_1.conda
@@ -1758,9 +1756,8 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-basic-ng-1.0.0b2-pyhd8ed1ab_3.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-copybutton-0.5.2-pyhd8ed1ab_1.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-design-0.7.0-pyhd8ed1ab_0.conda
-      - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-llm-0.3.0-pyhcf101f3_0.conda
-      - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-llms-txt-0.7.1-pyhd8ed1ab_0.conda
-      - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-markdown-builder-0.6.9-pyhd8ed1ab_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-llm-1.1.0-pyh5ded981_1.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-markdown-builder-0.6.11-pyh5ded981_1.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/sphinxcontrib-applehelp-2.0.0-pyhd8ed1ab_1.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/sphinxcontrib-bibtex-2.6.5-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/sphinxcontrib-devhelp-2.0.0-pyhd8ed1ab_1.conda
@@ -18424,46 +18421,38 @@ packages:
   - pkg:pypi/sphinx-design?source=hash-mapping
   size: 931118
   timestamp: 1769032711360
-- conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-llm-0.3.0-pyhcf101f3_0.conda
-  sha256: 62a204b7010c815335901148d3ec3ea2d52e4a2a2de73c588bb4443fb1174d39
-  md5: cf5ce83d6d7fab2e8b25c8054c8c5c7e
+- conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-llm-1.1.0-pyh5ded981_1.conda
+  sha256: 05f8332fb49c9ce322e8f111d1bd8370d5916cc7d7d2f0c11723d270e751d30c
+  md5: 84d1d11411403014ec4c15eafd43c92e
   depends:
-  - python >=3.10
+  - python >=3.11
   - sphinx-markdown-builder >=0.6.8
   - sphinx >=5
+  - markdown-it-py >=3
   - python
   license: BSD-3-Clause
   license_family: BSD
   purls:
-  - pkg:pypi/sphinx-llm?source=hash-mapping
-  size: 29619
-  timestamp: 1770380955944
-- conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-llms-txt-0.7.1-pyhd8ed1ab_0.conda
-  sha256: d57d93accf0fd40769eff17b84b30b5980b877240a393e3e83495f33eb282784
-  md5: 6b170f1a7d5c1729073c354b2d0ac32d
-  depends:
-  - python >=3.10
-  - sphinx
-  license: MIT
-  license_family: MIT
-  purls:
-  - pkg:pypi/sphinx-llms-txt?source=hash-mapping
-  size: 25685
-  timestamp: 1765935234507
-- conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-markdown-builder-0.6.9-pyhd8ed1ab_0.conda
-  sha256: 7dc51fc9ed3ad36a60ba5130e3cd3701cec0584f2661ef0c4b4c3331754f3749
-  md5: 00e2c326b6fd0c0a48d2580ae08ca748
+  - pkg:pypi/sphinx-llm?source=compressed-mapping
+  run_exports: {}
+  size: 79985
+  timestamp: 1789999393156
+- conda: https://conda.anaconda.org/conda-forge/noarch/sphinx-markdown-builder-0.6.11-pyh5ded981_1.conda
+  sha256: ec6d80fbcf8d7c6d69198278386afa8b2a98c35971cdf1a2eab18167b8393e91
+  md5: bde76da7789d94a15b7d570b41535f93
   depends:
-  - docutils
-  - python >=3.10
+  - python >=3.11
   - sphinx >=5.1.0
   - tabulate
+  - docutils
+  - python
   license: MIT
   license_family: MIT
   purls:
   - pkg:pypi/sphinx-markdown-builder?source=hash-mapping
-  size: 21881
-  timestamp: 1765123409331
+  run_exports: {}
+  size: 23751
+  timestamp: 1788375977153
 - conda: https://conda.anaconda.org/conda-forge/noarch/sphinxcontrib-applehelp-2.0.0-pyhd8ed1ab_1.conda
   sha256: d7433a344a9ad32a680b881c81b0034bc61618d12c39dd6e3309abeffa9577ba
   md5: 16e3f039c0aa6446513e94ab18a8784b
diff --git a/pyproject.toml b/pyproject.toml
index 5a55118e0..773f3d888 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -471,8 +471,7 @@ sphinx = ">=8.2.3"
 sphinxcontrib-bibtex = "*"
 sphinx-copybutton = "*"
 sphinx-design = "*"
-sphinx-llm = "*"
-sphinx-llms-txt = "*"
+sphinx-llm = ">=1.1.0"
 ipython = "*"
 ipython_genutils = "*"
 myst-nb = "*"
@@ -485,7 +484,7 @@ sphinxcontrib-mermaid = "*"
 intersphinx-registry = "*"
 
 [tool.pixi.feature.docs.tasks]
-build-docs = { cmd = "make html", cwd = "docs", description = "Build the HTML documentation" }
+build-docs = { cmd = "make html SPHINXOPTS=-T", cwd = "docs", description = "Build the HTML documentation" }
 
 # --- Compat features (version overrides for backward-compat CI) ---------------------
 [tool.pixi.feature.old-plotly.dependencies]