diff --git a/Kconfig b/Kconfig
index 7e40d787590..3828b11a5df 100644
--- a/Kconfig
+++ b/Kconfig
@@ -1,3 +1,5 @@
+# Kconfig is deprecated since Lima v1.2, and will be removed in Lima v2.0.
+# Use Makefile variables instead.
 
 mainmenu "Lima"
 
diff --git a/Makefile b/Makefile
index c9da565c716..4015ed391fd 100644
--- a/Makefile
+++ b/Makefile
@@ -145,9 +145,11 @@ native: clean limactl helpers native-guestagent templates template_experimentals
 ################################################################################
 # Kconfig
 config: Kconfig
+	$(warning Kconfig is deprecated since Lima v1.2 and will be removed in Lima v2.0.)
 	$(KCONFIG_CONF) $<
 
 menuconfig: Kconfig
+	$(warning Kconfig is deprecated since Lima v1.2 and will be removed in Lima v2.0.)
 	MENUCONFIG_STYLE=aquatic \
 	$(KCONFIG_MCONF) $<
 
diff --git a/website/content/en/docs/installation/source.md b/website/content/en/docs/installation/source.md
index 2c23b28858d..e887b5d8489 100644
--- a/website/content/en/docs/installation/source.md
+++ b/website/content/en/docs/installation/source.md
@@ -51,29 +51,3 @@ tar czf lima-additional-guestagents-package.tar.gz *
 ```
 
 These packages can then be transferred and installed on the target system.
-
-## Advanced Configuration with Kconfig Tools
-(This step is not needed for most users)
-
-To change the build configuration such as the guest architectures, run:
-
-```bash
-make config  # For text-based configuration
-make menuconfig  # For a menu-based configuration
-```
-
-This requires Kconfig tools to be installed. It is also possible to manually edit `.config`. The default configuration can be found in `config.mk` (which follows make syntax).
-
-The tools are available as either `kconfig-frontends` or `kbuild-standalone`. There are two interfaces:
-- `conf` for text-based configuration.
-- `mconf` for a menu-driven interface.
-
-A Python implementation is available at [Kconfiglib](https://pypi.org/project/kconfiglib). It can be installed with:
-
-```bash
-pip install --user kconfiglib
-```
-
-This also includes support for `guiconfig` (GUI-based configuration).
-
-