diff --git a/home/.config/Code/User/keybindings.json b/home/.config/Code/User/keybindings.json
new file mode 120000
index 0000000..7962b00
--- /dev/null
+++ b/home/.config/Code/User/keybindings.json
@@ -0,0 +1 @@
+../../VSCodium/User/keybindings.json
\ No newline at end of file
diff --git a/home/.config/Code/User/settings.json b/home/.config/Code/User/settings.json
new file mode 120000
index 0000000..18c44e6
--- /dev/null
+++ b/home/.config/Code/User/settings.json
@@ -0,0 +1 @@
+../../VSCodium/User/settings.json
\ No newline at end of file
diff --git a/home/.config/VSCodium/User/keybindings.json b/home/.config/VSCodium/User/keybindings.json
new file mode 100644
index 0000000..f4e8191
--- /dev/null
+++ b/home/.config/VSCodium/User/keybindings.json
@@ -0,0 +1,2 @@
+// Custom keybindings — add your overrides here.
+[]
diff --git a/home/.config/VSCodium/User/settings.json b/home/.config/VSCodium/User/settings.json
new file mode 100644
index 0000000..ea5dbda
--- /dev/null
+++ b/home/.config/VSCodium/User/settings.json
@@ -0,0 +1,49 @@
+{
+  "telemetry.telemetryLevel": "off",
+  "update.mode": "manual",
+  "extensions.autoUpdate": false,
+  "extensions.autoCheckUpdates": false,
+  "workbench.startupEditor": "none",
+  "workbench.iconTheme": "material-icon-theme",
+  "workbench.colorTheme": "Default Dark Modern",
+  "editor.fontFamily": "'JetBrains Mono', 'Cascadia Code', Menlo, Consolas, monospace",
+  "editor.fontSize": 14,
+  "editor.fontLigatures": true,
+  "editor.tabSize": 4,
+  "editor.insertSpaces": true,
+  "editor.rulers": [100],
+  "editor.renderWhitespace": "boundary",
+  "editor.bracketPairColorization.enabled": true,
+  "editor.formatOnSave": true,
+  "editor.codeActionsOnSave": {
+    "source.fixAll": "always",
+    "source.organizeImports": "always"
+  },
+  "files.trimTrailingWhitespace": true,
+  "files.insertFinalNewline": true,
+  "files.exclude": {
+    "**/__pycache__": true,
+    "**/.pytest_cache": true,
+    "**/.ruff_cache": true,
+    "**/.ty_cache": true,
+    "**/.venv": true,
+    "**/.coverage": true,
+    "**/*.egg-info": true
+  },
+  "[python]": {
+    "editor.defaultFormatter": "charliermarsh.ruff",
+    "editor.tabSize": 4
+  },
+  "[toml]": {
+    "editor.defaultFormatter": "tamasfe.even-better-toml"
+  },
+  "[yaml]": {
+    "editor.defaultFormatter": "redhat.vscode-yaml"
+  },
+  "python.analysis.typeCheckingMode": "off",
+  "terminal.integrated.defaultProfile.linux": "zsh",
+  "git.enableSmartCommit": true,
+  "git.confirmSync": false,
+  "git.autofetch": true,
+  "gitlens.telemetry.enabled": false
+}
diff --git a/home/.config/VSCodium/extensions.txt b/home/.config/VSCodium/extensions.txt
new file mode 100644
index 0000000..76a0f5f
--- /dev/null
+++ b/home/.config/VSCodium/extensions.txt
@@ -0,0 +1,12 @@
+# Core
+coder.coder-remote
+ms-python.python
+charliermarsh.ruff
+tamasfe.even-better-toml
+redhat.vscode-yaml
+# Git
+mhutchie.git-graph
+eamodio.gitlens
+# Quality of life
+pkief.material-icon-theme
+streetsidesoftware.code-spell-checker
diff --git a/install.sh b/install.sh
index cda963f..1ca9080 100755
--- a/install.sh
+++ b/install.sh
@@ -35,4 +35,19 @@ if [ "$CURSHELL" != "$(command -v zsh)" ]; then
   sudo chsh -s "$(command -v zsh)" "$USER" || true
 fi
 
+
+# 6. VSCodium / VS Code extensions (only installs if the binary is present locally;
+#    Coder workspaces don't have these, so this is a no-op there).
+EXTS_FILE="/home/.config/VSCodium/extensions.txt"
+for BIN in codium code; do
+  if command -v "" >/dev/null 2>&1 && [ -f "" ]; then
+    while IFS= read -r ext; do
+      case "" in
+        ""|\#*) continue ;;
+      esac
+      "" --install-extension "" --force >/dev/null 2>&1 || true
+    done < ""
+    echo ": extensions synced"
+  fi
+done
 echo "dotfiles installed: zsh + ohmyzsh + symlinks from $SRC/home"