diff --git a/README.md b/README.md
index 51eb677..c219d40 100644
--- a/README.md
+++ b/README.md
@@ -47,19 +47,19 @@ The apk file can be found at `android/app/build/outputs/apk/release/app-release.
 First ensure Node.js dependencies are installed:
 
 ```
-yarn install
+npm install
 ```
 
 Then start the metro server:
 
 ```
-yarn start
+npm start
 ```
 
 Then (in a separate terminal) run the `android` script:
 
 ```
-yarn android
+npm run android
 ```
 
 # Fdroid Metadata
diff --git a/deploy.sh b/deploy.sh
index e789a6a..66fd1d0 100755
--- a/deploy.sh
+++ b/deploy.sh
@@ -24,7 +24,7 @@ sed -i "s/\(^\s*\)versionName \"[0-9]*.[0-9]*\"$/\1versionName \"$major.$minor\"
 sed -i "s/\"version\": \"[0-9]*.[0-9]*\"/\"version\": \"$major.$minor\"/" ../package.json
 
 if [ "$1" != "-n" ]; then
-  yarn tsc
+  npx tsc
   ./gradlew bundleRelease
   bundle install
   bundle exec fastlane supply --aab app/build/outputs/bundle/release/app-release.aab
diff --git a/watch-lint.sh b/watch-lint.sh
deleted file mode 100755
index e5f0536..0000000
--- a/watch-lint.sh
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/bin/sh
-
-ls *.ts* | entr yarn lint | tee >(
-  while read ln; do 
-    if echo "${ln}" | grep -q "error"; then 
-      notify-send "${ln}"
-    fi
-  done
-)
diff --git a/watch-tsc.sh b/watch-tsc.sh
deleted file mode 100755
index 092687e..0000000
--- a/watch-tsc.sh
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/bin/sh
-
-yarn tsc --watch --preserveWatchOutput | tee >(
-  while read ln; do 
-    if echo "${ln}" | grep -q "Found [^0][0-9]* error"; then 
-      notify-send "${ln}"
-    fi
-  done
-)