diff --git a/.gitignore b/.gitignore
index 1855a6d..bff861a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,31 +1,35 @@
+# schematic lepton-EDA
+*.sch
+
+# board layout pcb-rnd
+*.lht
 *.lht.*
-*.versioned.lht
+
+# KiCAD
+*.kicad_prl
+*.kicad_pro-bak
+*.xml
+fp-info-cache
+
+# temporary files
 *~
-*.versioned.sch
+\#*\#
+
+# outputs
 *.svg
+*.png
 *.pdf
 *.ps
 *.zip
-*.brd.*
-*.ast
-*.g2l
-*.g3l
-*.gbl
-*.gbo
-*.gbp
-*.gbs
-*.gko
-*.gtl
-*.gto
-*.gtp
-*.gts
-*.xln
-*.tdx
-\#*\#
-*.notes.txt
 *.bom.csv
-*.cost.csv
 *.cpl.csv
+*.versioned.*
+fabrication
+
+# scripts and utilities
 *.json
 *.rb
-geda/footprints/
+
+# panel files
+panel.*
+panel