diff --git a/pkgs/by-name/ke/keyboard-layout-editor/deps.json b/pkgs/by-name/ke/keyboard-layout-editor/deps.json
new file mode 100644
index 0000000000000..3a9c1e2f09ce0
--- /dev/null
+++ b/pkgs/by-name/ke/keyboard-layout-editor/deps.json
@@ -0,0 +1,112 @@
+{
+ "!comment": "This is a nixpkgs Gradle dependency lockfile. For more details, refer to the Gradle section in the nixpkgs manual.",
+ "!version": 1,
+ "https://plugins.gradle.org/m2": {
+  "com/google/code/findbugs#jsr305/3.0.2": {
+   "jar": "sha256-dmrSoHg/JoeWLIrXTO7MOKKLn3Ki0IXuQ4t4E+ko0Mc=",
+   "pom": "sha256-GYidvfGyVLJgGl7mRbgUepdGRIgil2hMeYr+XWPXjf4="
+  },
+  "com/google/gradle#osdetector-gradle-plugin/1.7.3": {
+   "jar": "sha256-a0aS+ROiGx+2Axae54uo8+SrKvnXYq+cqIt5EmwcCtE=",
+   "pom": "sha256-hGDJUBJ8o1mHZhYeOLT/jWO01p+4MQoW4As1E1ABDBE="
+  },
+  "kr/motd/maven#os-maven-plugin/1.7.1": {
+   "jar": "sha256-9Hru+Ggh5SsrGHWJeL0EXwPXIikuMudHCCEixiKJUuA=",
+   "pom": "sha256-S3WABEIrljPdMY8p54Tx0YC9ilkgzVCvGTCGH21qVHY="
+  },
+  "org/openjfx#javafx-plugin/0.1.0": {
+   "jar": "sha256-Xq7sB5m0QGRrDKTP2iGaMttr4rpXktAyoNpKOlw4j6s=",
+   "module": "sha256-rf+3RA0kntF8BJOD1nBp+UU7F3gncMAFtoKkNBbYNmE=",
+   "pom": "sha256-NMjfVSfrWjXl8AmjzeH3oInEzkoOclgC8uy+UDu9PLY="
+  },
+  "org/openjfx/javafxplugin#org.openjfx.javafxplugin.gradle.plugin/0.1.0": {
+   "pom": "sha256-1tASf/Q2PQAXPDV6mByec+/wPDCl0Ohq2CtgVPrvqEE="
+  },
+  "org/sonatype/oss#oss-parent/7": {
+   "pom": "sha256-tR+IZ8kranIkmVV/w6H96ne9+e9XRyL+kM5DailVlFQ="
+  },
+  "org/sonatype/oss#oss-parent/9": {
+   "pom": "sha256-+0AmX5glSCEv+C42LllzKyGH7G8NgBgohcFO8fmCgno="
+  }
+ },
+ "https://repo.maven.apache.org/maven2": {
+  "com/google/code/gson#gson-parent/2.8.5": {
+   "pom": "sha256-jx/scrkaceo57Dn193jE0RJLawl8bVWzpQtVSlIjeyc="
+  },
+  "com/google/code/gson#gson/2.8.5": {
+   "jar": "sha256-IzoBSfw2XJ9u29aDz+JmsZvcdzvpjqva9rPJJLSOfYE=",
+   "pom": "sha256-uDCFV6f8zJLZ/nyM0FmSWLNhKF0uzedontqYhDJVoJI="
+  },
+  "commons-io#commons-io/2.6": {
+   "jar": "sha256-+HfTBGYKwqFC84ZbrfyXHex+1zx0fH+NXS9ROcpzZRM=",
+   "pom": "sha256-DCOGOJOiKR9aev29jRWSOzlIr9h+Vj+jQc3Pbq4zimA="
+  },
+  "junit#junit/4.12": {
+   "jar": "sha256-WXIfCAXiI9hLkGd4h9n/Vn3FNNfFAsqQPAwrF/BcEWo=",
+   "pom": "sha256-kPFj944/+28cetl96efrpO6iWAcUG4XW0SvmfKJUScQ="
+  },
+  "org/apache#apache/15": {
+   "pom": "sha256-NsLy+XmsZ7RQwMtIDk6br2tA86aB8iupaSKH0ROa1JQ="
+  },
+  "org/apache#apache/18": {
+   "pom": "sha256-eDEwcoX9R1u8NrIK4454gvEcMVOx1ZMPhS1E7ajzPBc="
+  },
+  "org/apache#apache/19": {
+   "pom": "sha256-kfejMJbqabrCy69tAf65NMrAAsSNjIz6nCQLQPHsId8="
+  },
+  "org/apache/commons#commons-exec/1.3": {
+   "jar": "sha256-y0mBLcG/sOpPIPOYvK4aiMZAbiE+Z/dST7ENT4rZNHs=",
+   "pom": "sha256-goJ/YBnA9xvXT7qIarM3/22ikfY9+XIzeaIJ1q07RPg="
+  },
+  "org/apache/commons#commons-lang3/3.8.1": {
+   "jar": "sha256-2sgH9lsHaY/zmxsHv+89h64/1G2Ru/iivAKyqDFhb2g=",
+   "pom": "sha256-7I4J91QRaFIFvQ2deHLMNiLmfHbfRKCiJ7J4vqBEWNU="
+  },
+  "org/apache/commons#commons-parent/35": {
+   "pom": "sha256-cJihq4M27NTJ3CHLvKyGn4LGb2S4rE95iNQbT8tE5Jo="
+  },
+  "org/apache/commons#commons-parent/42": {
+   "pom": "sha256-zTE0lMZwtIPsJWlyrxaYszDlmPgHACNU63ZUefYEsJw="
+  },
+  "org/apache/commons#commons-parent/47": {
+   "pom": "sha256-io7LVwVTv58f+uIRqNTKnuYwwXr+WSkzaPunvZtC/Lc="
+  },
+  "org/hamcrest#hamcrest-core/1.3": {
+   "jar": "sha256-Zv3vkelzk0jfeglqo4SlaF9Oh1WEzOiThqekclHE2Ok=",
+   "pom": "sha256-/eOGp5BRc6GxA95quCBydYS1DQ4yKC4nl3h8IKZP+pM="
+  },
+  "org/hamcrest#hamcrest-parent/1.3": {
+   "pom": "sha256-bVNflO+2Y722gsnyelAzU5RogAlkK6epZ3UEvBvkEps="
+  },
+  "org/openjfx#javafx-base/17": {
+   "pom": "sha256-uLgDYSRg1flc6XS9XYRx1G4/aOzteCfdjUSRwDAi9yU="
+  },
+  "org/openjfx#javafx-base/17/linux": {
+   "jar": "sha256-JDzahjaTFMNLsQvgAj88mFaCNcpN7UpZ4Hgd1kC8SWI="
+  },
+  "org/openjfx#javafx-controls/17": {
+   "pom": "sha256-6UfbVFcEn1pKxmiSa2QUtLCRglYerVymiyNSTg4cwD8="
+  },
+  "org/openjfx#javafx-controls/17/linux": {
+   "jar": "sha256-pa085GMw/aiPjx4/ue8E1kR2O6C2mpXkl66JTjWdrQg="
+  },
+  "org/openjfx#javafx-fxml/17": {
+   "pom": "sha256-5+IA5aFv3qbIDne2IhWyVMt9thHEy9K9jGtVeLt39oE="
+  },
+  "org/openjfx#javafx-fxml/17/linux": {
+   "jar": "sha256-pkXtb3SSd3px+3c/IPO1OuIh9U0Fnl3p0dD2cmyam68="
+  },
+  "org/openjfx#javafx-graphics/17": {
+   "pom": "sha256-3RVlTvq6FiyolcdAxqA7vUEu8XNwyMcOq9j6PTUer+I="
+  },
+  "org/openjfx#javafx-graphics/17/linux": {
+   "jar": "sha256-YIAnF9iwTwE25rLNS5BGiQBSVml3328MF/dT+0eJ/aY="
+  },
+  "org/openjfx#javafx/17": {
+   "pom": "sha256-Mc+sHCBGlsqDJZzWCcK2kks3dBR+MOM9vEX+kKHnuww="
+  },
+  "org/sonatype/oss#oss-parent/7": {
+   "pom": "sha256-tR+IZ8kranIkmVV/w6H96ne9+e9XRyL+kM5DailVlFQ="
+  }
+ }
+}
diff --git a/pkgs/by-name/ke/keyboard-layout-editor/fix-build-gradle.patch b/pkgs/by-name/ke/keyboard-layout-editor/fix-build-gradle.patch
new file mode 100644
index 0000000000000..d14aba43db4b5
--- /dev/null
+++ b/pkgs/by-name/ke/keyboard-layout-editor/fix-build-gradle.patch
@@ -0,0 +1,95 @@
+diff --git a/build.gradle b/build.gradle
+index b411200..a558065 100644
+--- a/build.gradle
++++ b/build.gradle
+@@ -1,5 +1,17 @@
++buildscript {
++    repositories {
++        maven {
++            url "https://plugins.gradle.org/m2/"
++        }
++    }
++    dependencies {
++        classpath 'org.openjfx:javafx-plugin:0.1.0'
++    }
++}
++
+ plugins {
+     id 'java'
++    id 'org.openjfx.javafxplugin' version '0.1.0'
+ }
+ 
+ group 'cz.gresak'
+@@ -12,22 +24,26 @@ repositories {
+ }
+ 
+ dependencies {
+-    compile group: 'com.google.code.gson', name: 'gson', version: '2.8.5'
+-    compile group: 'org.apache.commons', name: 'commons-exec', version: '1.3'
+-    compile group: 'commons-io', name: 'commons-io', version: '2.6'
+-    compile group: 'org.apache.commons', name: 'commons-lang3', version: '3.8.1'
++    implementation group: 'com.google.code.gson', name: 'gson', version: '2.8.5'
++    implementation group: 'org.apache.commons', name: 'commons-exec', version: '1.3'
++    implementation group: 'commons-io', name: 'commons-io', version: '2.6'
++    implementation group: 'org.apache.commons', name: 'commons-lang3', version: '3.8.1'
+ 
+-    testCompile group: 'junit', name: 'junit', version: '4.12'
++    testImplementation group: 'junit', name: 'junit', version: '4.12'
+ }
+ 
+ compileJava {
+     options.encoding = 'UTF-8'
+ }
+ 
++javafx {
++    modules = [ 'javafx.base', 'javafx.graphics', 'javafx.fxml' ]
++}
++
+ jar {
+     manifest {
+         attributes(
+-                'Class-Path': configurations.compile.collect { it.getName() }.join(' '),
++                'Class-Path': configurations.runtimeClasspath.collect { it.getName() }.join(' '),
+                 'Main-Class': 'cz.gresak.keyboardeditor.Main'
+         )
+     }
+@@ -40,7 +56,8 @@ task fatJar(type: Jar) {
+                 'Implementation-Version': version,
+                 'Main-Class': 'cz.gresak.keyboardeditor.Main'
+     }
+-    baseName = project.name + '-all'
+-    from { configurations.compile.collect { it.isDirectory() ? it : zipTree(it) } }
++    archiveBaseName = project.name + '-all'
++    duplicatesStrategy = DuplicatesStrategy.EXCLUDE
++    from { configurations.runtimeClasspath.collect { it.isDirectory() ? it : zipTree(it) } }
+     with jar
+ }
+\ No newline at end of file
+diff --git a/src/main/java/cz/gresak/keyboardeditor/component/Key.java b/src/main/java/cz/gresak/keyboardeditor/component/Key.java
+index d81d66d..9530faf 100644
+--- a/src/main/java/cz/gresak/keyboardeditor/component/Key.java
++++ b/src/main/java/cz/gresak/keyboardeditor/component/Key.java
+@@ -170,8 +170,8 @@ public class Key extends Pane {
+         bottomLeftChar.setLayoutY(bottomLine);
+         bottomRightChar.setLayoutY(bottomLine);
+         // horizontal alignment (needed only for the right column)
+-        double topLeftWidth = fontLoader.computeStringWidth(topLeftChar.getText(), topLeftChar.getFont());
+-        double bottomLeftWidth = fontLoader.computeStringWidth(bottomLeftChar.getText(), bottomLeftChar.getFont());
++        double topLeftWidth = 0.0; // fontLoader.computeStringWidth(topLeftChar.getText(), topLeftChar.getFont());
++        double bottomLeftWidth = 0.0; // fontLoader.computeStringWidth(bottomLeftChar.getText(), bottomLeftChar.getFont());
+         double maxLeftColumnLayoutX = Math.max(topLeftChar.getLayoutX(), bottomLeftChar.getLayoutX());
+         double xOffset = Math.max(
+                 (getWidth() / 2 - HPADDING) + KEY_COLUMN_SPACE, // center of the key
+diff --git a/src/main/java/cz/gresak/keyboardeditor/service/impl/FontProviderImpl.java b/src/main/java/cz/gresak/keyboardeditor/service/impl/FontProviderImpl.java
+index 4804505..a91ef5c 100644
+--- a/src/main/java/cz/gresak/keyboardeditor/service/impl/FontProviderImpl.java
++++ b/src/main/java/cz/gresak/keyboardeditor/service/impl/FontProviderImpl.java
+@@ -81,7 +81,7 @@ public class FontProviderImpl implements FontProvider {
+     @Override
+     public double getFontSize(String text, Font font, double widthToFit, double heightToFit) {
+         FontLoader fontLoader = Toolkit.getToolkit().getFontLoader();
+-        double sampleWidth = fontLoader.computeStringWidth(text, font);
++        double sampleWidth = 0.0; // fontLoader.computeStringWidth(text, font);
+         double fontSizeWidth = (widthToFit / sampleWidth) * font.getSize();
+ 
+         FontMetrics fontMetrics = fontLoader.getFontMetrics(font);
diff --git a/pkgs/by-name/ke/keyboard-layout-editor/package.nix b/pkgs/by-name/ke/keyboard-layout-editor/package.nix
new file mode 100644
index 0000000000000..ff88d38276139
--- /dev/null
+++ b/pkgs/by-name/ke/keyboard-layout-editor/package.nix
@@ -0,0 +1,73 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  gradle_8,
+  makeBinaryWrapper,
+  openjdk,
+  wrapGAppsHook3,
+  xorg,
+}:
+
+let
+  jdk = openjdk.override {
+    enableJavaFX = true;
+  };
+
+in
+stdenv.mkDerivation rec {
+  pname = "keyboard-layout-editor";
+  version = "0-unstable-2019-05-14";
+
+  src = fetchFromGitHub {
+    owner = "vgresak";
+    repo = "keyboard-layout-editor";
+    rev = "308c62ac4bb9ad25429f4d09c0aaa9f72d4194c9";
+    hash = "sha256-ieXHgXAdC1xVJWXwpf9sQ9FaSLeaJfd+Rr7uD8blwHE=";
+  };
+
+  patches = [ ./fix-build-gradle.patch ];
+
+  nativeBuildInputs = [
+    gradle_8
+    makeBinaryWrapper
+    wrapGAppsHook3
+  ];
+
+  mitmCache = gradle_8.fetchDeps {
+    inherit pname;
+    data = ./deps.json;
+  };
+
+  __darwinAllowLocalNetworking = true;
+
+  gradleBuildTask = "fatJar";
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out/share/java
+    cp build/libs/keyboard-layout-editor-all-1.0-SNAPSHOT.jar $out/share/java/keyboard-layout-editor.jar
+    mkdir -p $out/bin
+    makeWrapper ${lib.getExe jdk} $out/bin/keyboard-layout-editor \
+      --prefix PATH : ${lib.makeBinPath [ xorg.xkbcomp ]} \
+      --add-flags "--add-opens=javafx.graphics/com.sun.prism=ALL-UNNAMED" \
+      --add-flags "--add-opens=javafx.graphics/com.sun.javafx.font=ALL-UNNAMED" \
+      --add-flags "--add-opens=javafx.graphics/com.sun.javafx.tk=ALL-UNNAMED" \
+      --add-flags "-cp $out/share/java/keyboard-layout-editor.jar cz.gresak.keyboardeditor.Main" \
+      ''${gappsWrapperArgs[@]}
+
+    runHook postInstall
+  '';
+
+  meta = {
+    description = "Keyboard layout editor for XKB";
+    homepage = "https://github.com/vgresak/keyboard-layout-editor";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ fliegendewurst ];
+    mainProgram = "keyboard-layout-editor";
+    platforms = jdk.meta.platforms;
+    # gradle resolves platform-specific dependencies
+    broken = stdenv.hostPlatform.isAarch64 || stdenv.hostPlatform.isDarwin;
+  };
+}