Add shared libs directory to gitignore and Makefile

Configure statdown to write CSS/JS dependencies to static/libs/
so they are shared across posts, and ignore that directory in git.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitignore

@@ -16,6 +16,9 @@ hugo.linux
 # Temporary lock file while building
 /.hugo_build.lock
 
+# Shared CSS/JS dependencies generated by statdown/depkit
+/static/libs/
+
 # Created by https://www.toptal.com/developers/gitignore/api/R
 # Edit at https://www.toptal.com/developers/gitignore?templates=R
 

Makefile

@@ -83,11 +83,16 @@ help: #> Generate this help message
 RMD_SOURCES := $(wildcard content/posts/*/index.Rmd)
 MD_TARGETS  := $(RMD_SOURCES:.Rmd=.md)
 
+# Shared asset location for CSS/JS dependencies (via depkit)
+LIBS_DIR := static/libs
+LIBS_URL := /libs
+
 # Pattern rule: render index.md from index.Rmd using statdown
 # Re-render when renv.lock changes (package version update)
+# Assets are written to static/libs/ so they are shared across posts
 %/index.md: %/index.Rmd renv.lock
 	@echo "🔄 Rendering $<"
-	cd $* && Rscript -e 'renv::restore(prompt = FALSE); statdown::statdown_render("index.Rmd")'
+	cd $* && Rscript -e 'renv::restore(prompt = FALSE); statdown::statdown_render("index.Rmd", output_root = "$(CURDIR)/$(LIBS_DIR)", url_root = "$(LIBS_URL)")'
 
 #-----------------------------------------------------------------------------#
 #