diff --git a/.gitignore b/.gitignore
index 339cf071..b8885486 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,37 +1,35 @@
-# node, npm
-node_modules/
+### GENERAL
 
 # Windows
 Thumbs.db
 Desktop.ini
 
-# Mac
+# macOS
 .DS_Store
 .supported
 
+# common code editors
+.atom/
+.vscode/
+
 # NetBeans
-/nbproject/private/
+nbproject/private/
 
-# WebStorm
-**/.idea/workspace.xml
-**/.idea/tasks.xml
+# JetBrains IDEs
+# see https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+captures
 
-# VSCode
-.vscode/
+# common files
+*.log
 
-dist/
 
-lib-cov
-*.seed
-*.log
-*.csv
-*.dat
-*.out
-*.pid
-*.gz
+### PROJECT
 
-pids
-logs
-results
+# node, npm
+node_modules/
 
-build/
+# built Node.js C++ addon
+/build/
diff --git a/.idea/dictionaries/pokusew.xml b/.idea/dictionaries/pokusew.xml
index 16dc3abc..ed13db8c 100644
--- a/.idea/dictionaries/pokusew.xml
+++ b/.idea/dictionaries/pokusew.xml
@@ -3,6 +3,8 @@
     <words>
       <w>addons</w>
       <w>doctoc</w>
+      <w>gitignore</w>
+      <w>npmignore</w>
       <w>pcsc</w>
       <w>pcsclite</w>
       <w>picc</w>
diff --git a/.npmignore b/.npmignore
index e69de29b..1a12ee50 100644
--- a/.npmignore
+++ b/.npmignore
@@ -0,0 +1,37 @@
+# Keeping files out of your package
+# docs: https://docs.npmjs.com/misc/developers#keeping-files-out-of-your-package
+# note: when both .npmignore and .gitignore are present, only .npmignore has effect
+# related: https://stackoverflow.com/questions/24942161/does-npm-ignore-files-listed-in-gitignore
+
+### GENERAL
+
+# Windows
+Thumbs.db
+Desktop.ini
+
+# macOS
+.DS_Store
+.supported
+
+# common code editors
+.atom/
+.vscode/
+
+# NetBeans
+nbproject/private/
+
+# JetBrains IDEs
+# no need to ship metadata
+.idea/
+
+# common files
+*.log
+
+
+### PROJECT
+
+# node, npm
+node_modules/
+
+# built Node.js C++ addon
+/build/