diff --git a/app/build.gradle b/app/build.gradle
index d42eb3d99..d5687053f 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -162,6 +162,7 @@ android {
 
 dependencies {
     implementation project(path: ':quartz')
+    implementation project(path: ':commons')
     implementation "androidx.core:core-ktx:$core_ktx_version"
     implementation 'androidx.activity:activity-compose:1.8.2'
     implementation "androidx.compose.ui:ui:$compose_ui_version"
diff --git a/app/src/main/java/com/vitorpamplona/amethyst/ui/components/ExpandableRichTextViewer.kt b/app/src/main/java/com/vitorpamplona/amethyst/ui/components/ExpandableRichTextViewer.kt
index 8128f54b7..325211aa2 100644
--- a/app/src/main/java/com/vitorpamplona/amethyst/ui/components/ExpandableRichTextViewer.kt
+++ b/app/src/main/java/com/vitorpamplona/amethyst/ui/components/ExpandableRichTextViewer.kt
@@ -44,6 +44,7 @@ import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import com.vitorpamplona.amethyst.R
+import com.vitorpamplona.amethyst.commons.ExpandableTextParser
 import com.vitorpamplona.amethyst.ui.note.getGradient
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 import com.vitorpamplona.amethyst.ui.theme.ButtonBorder
@@ -51,9 +52,6 @@ import com.vitorpamplona.amethyst.ui.theme.ButtonPadding
 import com.vitorpamplona.amethyst.ui.theme.secondaryButtonBackground
 import com.vitorpamplona.quartz.events.ImmutableListOfLists
 
-const val SHORT_TEXT_LENGTH = 350
-const val SHORTEN_AFTER_LINES = 10
-
 @Composable
 fun ExpandableRichTextViewer(
     content: String,
@@ -66,30 +64,7 @@ fun ExpandableRichTextViewer(
 ) {
     var showFullText by remember { mutableStateOf(false) }
 
-    val whereToCut =
-        remember(content) {
-            // Cuts the text in the first space or new line after SHORT_TEXT_LENGTH characters
-            val firstSpaceAfterCut =
-                content.indexOf(' ', SHORT_TEXT_LENGTH).let { if (it < 0) content.length else it }
-            val firstNewLineAfterCut =
-                content.indexOf('\n', SHORT_TEXT_LENGTH).let { if (it < 0) content.length else it }
-
-            // or after SHORTEN_AFTER_LINES lines
-            val numberOfLines = content.count { it == '\n' }
-
-            var charactersInLines = minOf(firstSpaceAfterCut, firstNewLineAfterCut)
-
-            if (numberOfLines > SHORTEN_AFTER_LINES) {
-                val shortContent = content.lines().take(SHORTEN_AFTER_LINES)
-                charactersInLines = 0
-                for (line in shortContent) {
-                    // +1 because new line character is omitted from .lines
-                    charactersInLines += (line.length + 1)
-                }
-            }
-
-            minOf(firstSpaceAfterCut, firstNewLineAfterCut, charactersInLines)
-        }
+    val whereToCut = remember(content) { ExpandableTextParser().computeWhereToCutIfPostIsTooLong(content) }
 
     val text by
         remember(content) {
diff --git a/benchmark/build.gradle b/benchmark/build.gradle
index 79f7fc1f5..8dcb746c1 100644
--- a/benchmark/build.gradle
+++ b/benchmark/build.gradle
@@ -54,6 +54,7 @@ dependencies {
     androidTestImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.benchmark:benchmark-junit4:1.2.3'
     androidTestImplementation project(path: ':quartz')
+    androidTestImplementation project(path: ':commons')
 
     // Add your dependencies here. Note that you cannot benchmark code
     // in an app module this way - you will need to move any code you
diff --git a/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/ExpandableViewComputationBenchmark.kt b/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/ExpandableViewComputationBenchmark.kt
new file mode 100644
index 000000000..a1c6dbde9
--- /dev/null
+++ b/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/ExpandableViewComputationBenchmark.kt
@@ -0,0 +1,119 @@
+/**
+ * Copyright (c) 2023 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.benchmark
+
+import androidx.benchmark.junit4.BenchmarkRule
+import androidx.benchmark.junit4.measureRepeated
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.vitorpamplona.amethyst.commons.ExpandableTextParser
+import junit.framework.TestCase
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4::class)
+class ExpandableViewComputationBenchmark {
+    @get:Rule
+    val benchmarkRule = BenchmarkRule()
+
+    @Test
+    fun computeTestCase1() {
+        benchmarkRule.measureRepeated {
+            TestCase.assertEquals(
+                294,
+                ExpandableTextParser().computeWhereToCutIfPostIsTooLong(testCase1),
+            )
+        }
+    }
+
+    @Test
+    fun computeTestCase2() {
+        benchmarkRule.measureRepeated {
+            TestCase.assertEquals(
+                355,
+                ExpandableTextParser().computeWhereToCutIfPostIsTooLong(testCase2),
+            )
+        }
+    }
+
+    val testCase1 = """
+#Amethyst v0.83.10
+
+تحديث جديد لـ Amethyst بإصدار 0.83.10 مع تعديلات وإضافات جديدة
+
+: NIP-92 إصلاحات الأخطاء
+
+ الإضافات الجديدة:
+ - يتضمن رابط المنتج في الرسالة الأولى من المشتري في السوق
+ - يضيف دعمًا لـ NIP-92 في الرسائل العامة والرسائل المباشرة الجديدة (NIP-17).  يبقى NIP-54 في NIP-04 DMs
+ - إضافة التمرير الأفقي إلى أزرار الإجراءات في شاشة النشر الجديد لإصلاح الأزرار المخفية جزئيًا في الشاشات الصغيرة/الرفيعة.
+
+ اصلاحات الشوائب:
+ - إصلاحات التعطل مع مبلغ Zap مخصص غير صالح
+ - يعمل على إصلاح مشكلات إعادة اتصال التتابع عندما يقوم المرحل بإغلاق الاتصال
+ - إصلاح الحشو العلوي للملاحظة المقتبسة في المنشور
+ - تحسين استخدام الذاكرة للمستخدم المرئي وعلامة URL في المشاركات الجديدة
+
+ الترجمات المحدثة:
+ - الفارسية بواسطة
+ - الفرنسية والإنجليزية، المملكة المتحدة بواسطة
+ - الأوكرانية
+ - الإسبانية والإسبانية والمكسيك والإسبانية والولايات المتحدة بواسطة
+ - العربية
+
+ تحسينات جودة الكود:
+ - تحديثات لنظام Android Studio 2023.1.1 Patch 2
+
+
+
+
+nostr:nevent1qqszq7kl888sw0c5rpvepn8w373zt0jrw8864x8lkauxxw335s66rzgppemhxue69uhkummn9ekx7mp0qgsyvrp9u6p0mfur9dfdru3d853tx9mdjuhkphxuxgfwmryja7zsvhqrqsqqqqqpaax7m2
+"""
+
+    val testCase2 = """
+#Amethyst v0.83.10: NIP-92 and Bug Fixes
+
+New Additions:
+- Includes a link to the product in the first message from the buyer in the marketplace
+- Adds support for NIP-92 in public messages and new DMs (NIP-17). NIP-54 stays in NIP-04 DMs
+- Adds Horizontal Scroll to the action buttons in the New Post screen to partially fix hidden buttons in small/thin screens.
+
+Bugfixes:
+- Fixes crash with an invalid custom Zap Amount
+- Fixes relay re-connection issues when the relay closes a connection
+- Fixes the top padding of the quoted note in a post
+- Optimizes memory use of the visual user and url tagger in new posts
+
+Updated translations:
+- Persian by nostr:npub1cpazafytvafazxkjn43zjfwtfzatfz508r54f6z6a3rf2ws8223qc3xxpk
+- French and English, United Kingdom by nostr:npub13qtw3yu0uc9r4yj5x0rhgy8nj5q0uyeq0pavkgt9ly69uuzxgkfqwvx23t
+- Ukrainian by crowdin.com/profile/liizzzz
+- Spanish, Spanish, Mexico and Spanish, United States by nostr:npub1luhyzgce7qtcs6r6v00ryjxza8av8u4dzh3avg0zks38tjktnmxspxq903
+- Arabic by nostr:npub13qtw3yu0uc9r4yj5x0rhgy8nj5q0uyeq0pavkgt9ly69uuzxgkfqwvx23t
+
+Code Quality Improvements:
+- Updates to Android Studio 2023.1.1 Patch 2
+
+Download:
+- [Play Edition](https://github.com/vitorpamplona/amethyst/releases/download/v0.83.10/amethyst-googleplay-universal-v0.83.10.apk )
+- [FOSS Edition - No translations](https://github.com/vitorpamplona/amethyst/releases/download/v0.83.10/amethyst-fdroid-universal-v0.83.10.apk )
+"""
+}
diff --git a/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/BechBenchmark.kt b/benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/BechBenchmark.kt
similarity index 98%
rename from benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/BechBenchmark.kt
rename to benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/BechBenchmark.kt
index eecc0213f..fa63a5afa 100644
--- a/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/BechBenchmark.kt
+++ b/benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/BechBenchmark.kt
@@ -18,7 +18,7 @@
  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
-package com.vitorpamplona.amethyst.benchmark
+package com.vitorpamplona.quartz.benchmark
 
 import androidx.benchmark.junit4.BenchmarkRule
 import androidx.benchmark.junit4.measureRepeated
diff --git a/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/ContainsBenchmark.kt b/benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/ContainsBenchmark.kt
similarity index 99%
rename from benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/ContainsBenchmark.kt
rename to benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/ContainsBenchmark.kt
index b0063d14d..151e9e421 100644
--- a/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/ContainsBenchmark.kt
+++ b/benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/ContainsBenchmark.kt
@@ -18,7 +18,7 @@
  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
-package com.vitorpamplona.amethyst.benchmark
+package com.vitorpamplona.quartz.benchmark
 
 import androidx.benchmark.junit4.BenchmarkRule
 import androidx.benchmark.junit4.measureRepeated
diff --git a/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/CryptoBenchmark.kt b/benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/CryptoBenchmark.kt
similarity index 98%
rename from benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/CryptoBenchmark.kt
rename to benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/CryptoBenchmark.kt
index 82b1bbb7a..4f484dbed 100644
--- a/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/CryptoBenchmark.kt
+++ b/benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/CryptoBenchmark.kt
@@ -18,7 +18,7 @@
  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
-package com.vitorpamplona.amethyst.benchmark
+package com.vitorpamplona.quartz.benchmark
 
 import androidx.benchmark.junit4.BenchmarkRule
 import androidx.benchmark.junit4.measureRepeated
diff --git a/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/EventBenchmark.kt b/benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/EventBenchmark.kt
similarity index 99%
rename from benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/EventBenchmark.kt
rename to benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/EventBenchmark.kt
index ddfbb0fd8..75140de66 100644
--- a/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/EventBenchmark.kt
+++ b/benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/EventBenchmark.kt
@@ -18,7 +18,7 @@
  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
-package com.vitorpamplona.amethyst.benchmark
+package com.vitorpamplona.quartz.benchmark
 
 import androidx.benchmark.junit4.BenchmarkRule
 import androidx.benchmark.junit4.measureRepeated
diff --git a/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/GiftWrapBenchmark.kt b/benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/GiftWrapBenchmark.kt
similarity index 99%
rename from benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/GiftWrapBenchmark.kt
rename to benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/GiftWrapBenchmark.kt
index ecf035d6e..ab8791e8c 100644
--- a/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/GiftWrapBenchmark.kt
+++ b/benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/GiftWrapBenchmark.kt
@@ -18,7 +18,7 @@
  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
-package com.vitorpamplona.amethyst.benchmark
+package com.vitorpamplona.quartz.benchmark
 
 import androidx.benchmark.junit4.BenchmarkRule
 import androidx.benchmark.junit4.measureRepeated
diff --git a/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/GiftWrapReceivingBenchmark.kt b/benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/GiftWrapReceivingBenchmark.kt
similarity index 99%
rename from benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/GiftWrapReceivingBenchmark.kt
rename to benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/GiftWrapReceivingBenchmark.kt
index 19591c4fd..ec38a52dd 100644
--- a/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/GiftWrapReceivingBenchmark.kt
+++ b/benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/GiftWrapReceivingBenchmark.kt
@@ -18,7 +18,7 @@
  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
-package com.vitorpamplona.amethyst.benchmark
+package com.vitorpamplona.quartz.benchmark
 
 import androidx.benchmark.junit4.BenchmarkRule
 import androidx.benchmark.junit4.measureRepeated
diff --git a/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/GiftWrapSigningBenchmark.kt b/benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/GiftWrapSigningBenchmark.kt
similarity index 99%
rename from benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/GiftWrapSigningBenchmark.kt
rename to benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/GiftWrapSigningBenchmark.kt
index 6363da2b9..5d352c10d 100644
--- a/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/GiftWrapSigningBenchmark.kt
+++ b/benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/GiftWrapSigningBenchmark.kt
@@ -18,7 +18,7 @@
  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
-package com.vitorpamplona.amethyst.benchmark
+package com.vitorpamplona.quartz.benchmark
 
 import androidx.benchmark.junit4.BenchmarkRule
 import androidx.benchmark.junit4.measureRepeated
diff --git a/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/HexBenchmark.kt b/benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/HexBenchmark.kt
similarity index 98%
rename from benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/HexBenchmark.kt
rename to benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/HexBenchmark.kt
index b641c7574..1c6d904e9 100644
--- a/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/HexBenchmark.kt
+++ b/benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/HexBenchmark.kt
@@ -18,7 +18,7 @@
  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
-package com.vitorpamplona.amethyst.benchmark
+package com.vitorpamplona.quartz.benchmark
 
 import androidx.benchmark.junit4.BenchmarkRule
 import androidx.benchmark.junit4.measureRepeated
diff --git a/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/RobohashBenchmark.kt b/benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/RobohashBenchmark.kt
similarity index 99%
rename from benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/RobohashBenchmark.kt
rename to benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/RobohashBenchmark.kt
index bc32301c7..d5682a81a 100644
--- a/benchmark/src/androidTest/java/com/vitorpamplona/amethyst/benchmark/RobohashBenchmark.kt
+++ b/benchmark/src/androidTest/java/com/vitorpamplona/quartz/benchmark/RobohashBenchmark.kt
@@ -18,7 +18,7 @@
  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
-package com.vitorpamplona.amethyst.benchmark
+package com.vitorpamplona.quartz.benchmark
 
 import androidx.benchmark.junit4.BenchmarkRule
 import androidx.benchmark.junit4.measureRepeated
diff --git a/commons/.gitignore b/commons/.gitignore
new file mode 100644
index 000000000..42afabfd2
--- /dev/null
+++ b/commons/.gitignore
@@ -0,0 +1 @@
+/build
\ No newline at end of file
diff --git a/commons/build.gradle b/commons/build.gradle
new file mode 100644
index 000000000..59b024720
--- /dev/null
+++ b/commons/build.gradle
@@ -0,0 +1,41 @@
+plugins {
+    id 'com.android.library'
+    id 'org.jetbrains.kotlin.android'
+}
+
+android {
+    namespace 'com.vitorpamplona.amethyst.commons'
+    compileSdk 34
+
+    defaultConfig {
+        minSdk 26
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles "consumer-rules.pro"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled true
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+        create("benchmark") {
+            initWith(getByName("release"))
+            signingConfig signingConfigs.debug
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
+    }
+    kotlinOptions {
+        jvmTarget = '17'
+        freeCompilerArgs += "-Xstring-concat=inline"
+    }
+}
+
+dependencies {
+    testImplementation 'junit:junit:4.13.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.5'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
+}
\ No newline at end of file
diff --git a/commons/consumer-rules.pro b/commons/consumer-rules.pro
new file mode 100644
index 000000000..e69de29bb
diff --git a/commons/proguard-rules.pro b/commons/proguard-rules.pro
new file mode 100644
index 000000000..481bb4348
--- /dev/null
+++ b/commons/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
\ No newline at end of file
diff --git a/commons/src/main/AndroidManifest.xml b/commons/src/main/AndroidManifest.xml
new file mode 100644
index 000000000..44008a433
--- /dev/null
+++ b/commons/src/main/AndroidManifest.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest>
+
+</manifest>
\ No newline at end of file
diff --git a/commons/src/main/java/com/vitorpamplona/amethyst/commons/ExpandableTextParser.kt b/commons/src/main/java/com/vitorpamplona/amethyst/commons/ExpandableTextParser.kt
new file mode 100644
index 000000000..a194933a0
--- /dev/null
+++ b/commons/src/main/java/com/vitorpamplona/amethyst/commons/ExpandableTextParser.kt
@@ -0,0 +1,52 @@
+/**
+ * Copyright (c) 2023 Vitor Pamplona
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
+ * Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+package com.vitorpamplona.amethyst.commons
+
+class ExpandableTextParser {
+    companion object {
+        const val SHORT_TEXT_LENGTH = 350
+        const val SHORTEN_AFTER_LINES = 10
+    }
+
+    fun computeWhereToCutIfPostIsTooLong(content: String): Int {
+        // Cuts the text in the first space or new line after SHORT_TEXT_LENGTH characters
+        val firstSpaceAfterCut =
+            content.indexOf(' ', SHORT_TEXT_LENGTH).let { if (it < 0) content.length else it }
+        val firstNewLineAfterCut =
+            content.indexOf('\n', SHORT_TEXT_LENGTH).let { if (it < 0) content.length else it }
+
+        // or after SHORTEN_AFTER_LINES lines
+        val numberOfLines = content.count { it == '\n' }
+
+        var charactersInLines = minOf(firstSpaceAfterCut, firstNewLineAfterCut)
+
+        if (numberOfLines > SHORTEN_AFTER_LINES) {
+            val shortContent = content.lines().take(SHORTEN_AFTER_LINES)
+            charactersInLines = 0
+            for (line in shortContent) {
+                // +1 because new line character is omitted from .lines
+                charactersInLines += (line.length + 1)
+            }
+        }
+
+        return minOf(firstSpaceAfterCut, firstNewLineAfterCut, charactersInLines)
+    }
+}
diff --git a/settings.gradle b/settings.gradle
index d535b492f..6ac181c95 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -23,3 +23,4 @@ rootProject.name = "Amethyst"
 include ':app'
 include ':benchmark'
 include ':quartz'
+include ':commons'