diff --git i/llm/cli.py w/llm/cli.py
index 09e4e2d..8424a5e 100644
--- i/llm/cli.py
+++ w/llm/cli.py
@@ -2383,18 +2383,18 @@ def display_truncated(text):
 )
 def install(packages, upgrade, editable, force_reinstall, no_cache_dir):
     """Install packages from PyPI into the same environment as LLM"""
-    args = ["pip", "install"]
-    if upgrade:
-        args += ["--upgrade"]
-    if editable:
-        args += ["--editable", editable]
-    if force_reinstall:
-        args += ["--force-reinstall"]
-    if no_cache_dir:
-        args += ["--no-cache-dir"]
-    args += list(packages)
-    sys.argv = args
-    run_module("pip", run_name="__main__")
+    click.echo(
+"""Install command has been disabled for Nix. To install extra `llm` plugins, use the `llm.withPlugins` function.
+
+Example:
+
+```nix
+llm.withPlugins {
+  @listOfPackagedPlugins@
+}
+```
+"""
+    )
 
 
 @cli.command()
@@ -2402,8 +2402,18 @@ def install(packages, upgrade, editable, force_reinstall, no_cache_dir):
 @click.option("-y", "--yes", is_flag=True, help="Don't ask for confirmation")
 def uninstall(packages, yes):
     """Uninstall Python packages from the LLM environment"""
-    sys.argv = ["pip", "uninstall"] + list(packages) + (["-y"] if yes else [])
-    run_module("pip", run_name="__main__")
+    click.echo(
+"""Uninstall command has been disabled for Nix. To remove `llm` plugins, use the `llm.withPlugins` function with the desired set of plugins specified.
+
+Example:
+
+```nix
+llm.withPlugins {
+  @listOfPackagedPlugins@
+}
+```
+"""
+    )
 
 
 @cli.command()