diff --git a/README.md b/README.md
index 2488016..1a6c10e 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ repositories {
 }
 
 dependencies {
-    implementation("me.alex_s168:blitz:0.10")
+    implementation("me.alex_s168:blitz:0.11")
 }
 ```
 
@@ -185,6 +185,20 @@ list.add(5)
 println(list.contents)
 // outputs: [1, 5, 9]
 ```
+### Matrix
+```kotlin
+val mat = Matrix(3, 3) { x, y -> x * (3-y) }
+println(mat)
+println(mat.transposeCopy())
+println(mat.diagonals())
+```
+### Box drawing
+```kotlin
+val out = MutMultiColoredMultiLineString(fill = ColoredChar(' '))
+out.box(x to y, 20 to 5, BoxDrawingCharSet.ROUND, Terminal.COLORS.WHITE.brighter.fg)
+println(out.toString())
+```
+
 ### Either
 No example yet
 
diff --git a/build.gradle.kts b/build.gradle.kts
index d39c237..f08f4e6 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -28,3 +28,15 @@ kotlin {
 application {
     mainClass.set("blitz.FnpKt")
 }
+
+publishing {
+    publications {
+        create<MavenPublication>("maven") {
+            groupId = group.toString()
+            artifactId = "blitz"
+            version = version.toString()
+
+            from(components["kotlin"])
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/blitz/collections/Matrix.kt b/src/main/kotlin/blitz/collections/Matrix.kt
index 4648fa8..e856fd9 100644
--- a/src/main/kotlin/blitz/collections/Matrix.kt
+++ b/src/main/kotlin/blitz/collections/Matrix.kt
@@ -58,13 +58,4 @@ class Matrix<T>(
         rows.joinToString(separator = "\n") {
             it.joinToString(separator = ", ", prefix = "| ", postfix = " |")
         } + "\n--"
-}
-
-fun main() {
-    val mat = Matrix(3, 3) { x, y -> x * (3-y) }
-    println(mat)
-
-    println(mat.transposeCopy())
-
-    println(mat.diagonals())
 }
\ No newline at end of file
diff --git a/src/main/kotlin/blitz/str/BoxDrawingCharSet.kt b/src/main/kotlin/blitz/str/BoxDrawingCharSet.kt
new file mode 100644
index 0000000..33f5871
--- /dev/null
+++ b/src/main/kotlin/blitz/str/BoxDrawingCharSet.kt
@@ -0,0 +1,86 @@
+package blitz.str
+
+data class BoxDrawingCharSet(
+    val cornerLeftTop: Char,
+    val cornerRightTop: Char,
+    val cornerLeftBottom: Char,
+    val cornerRightBottom: Char,
+    val horizontal: Char,
+    val vertical: Char,
+) {
+    constructor(corner: Char, horizontal: Char, vertical: Char): this(corner,corner,corner,corner,horizontal,vertical)
+    constructor(corner: Char, line: Char): this(corner, line, line)
+    constructor(all: Char): this(all, all)
+
+    /*
+      	0 	1 	2 	3 	4 	5 	6 	7 	8 	9 	A 	B 	C 	D 	E 	F
+U+250x 	─ 	━ 	│ 	┃ 	┄ 	┅ 	┆ 	┇ 	┈ 	┉ 	┊ 	┋ 	┌ 	┍ 	┎ 	┏
+
+U+251x 	┐ 	┑ 	┒ 	┓ 	└ 	┕ 	┖ 	┗ 	┘ 	┙ 	┚ 	┛ 	├ 	┝ 	┞ 	┟
+
+U+252x 	┠ 	┡ 	┢ 	┣ 	┤ 	┥ 	┦ 	┧ 	┨ 	┩ 	┪ 	┫ 	┬ 	┭ 	┮ 	┯
+
+U+253x 	┰ 	┱ 	┲ 	┳ 	┴ 	┵ 	┶ 	┷ 	┸ 	┹ 	┺ 	┻ 	┼ 	┽ 	┾ 	┿
+
+U+254x 	╀ 	╁ 	╂ 	╃ 	╄ 	╅ 	╆ 	╇ 	╈ 	╉ 	╊ 	╋ 	╌ 	╍ 	╎ 	╏
+
+U+255x 	═ 	║ 	╒ 	╓ 	╔ 	╕ 	╖ 	╗ 	╘ 	╙ 	╚ 	╛ 	╜ 	╝ 	╞ 	╟
+
+U+256x 	╠ 	╡ 	╢ 	╣ 	╤ 	╥ 	╦ 	╧ 	╨ 	╩ 	╪ 	╫ 	╬ 	╭ 	╮ 	╯
+
+U+257x 	╰ 	╱ 	╲ 	╳ 	╴ 	╵ 	╶ 	╷ 	╸ 	╹ 	╺ 	╻ 	╼ 	╽ 	╾ 	╿
+     */
+
+    companion object {
+        val ASCII =             BoxDrawingCharSet('*', '-', '|')
+        val ASCII_BOLD =        BoxDrawingCharSet('#', '=', '|')
+        val NORMAL =            BoxDrawingCharSet('┌', '┐', '└', '┘', '─', '│')
+        val BOLD =              BoxDrawingCharSet('┏', '┓', '┗', '┛', '━', '┃')
+        val BOLD_SPACED =       BoxDrawingCharSet('┏', '┓', '┗', '┛', '╸', '╏')
+        val DOUBLE =            BoxDrawingCharSet('╔', '╗', '╚', '╝', '═', '║')
+        val ROUND =             BoxDrawingCharSet('╭', '╮', '╰', '╯', '─', '│')
+        val DOTTED =            BoxDrawingCharSet('┌', '┐', '└', '┘', '╴', '┆')
+        val DOTTED_SMALL =      BoxDrawingCharSet('┌', '┐', '└', '┘', '╴', '┊')
+        val BOLD_DOTTED =       BoxDrawingCharSet('┏', '┓', '┗', '┛', '╸', '┇')
+        val BOLD_DOTTED_SMALL = BoxDrawingCharSet('┏', '┓', '┗', '┛', '╸', '┋')
+
+        val all = listOf(
+            ASCII,
+            ASCII_BOLD,
+            NORMAL,
+            BOLD,
+            BOLD_SPACED,
+            DOUBLE,
+            ROUND,
+            DOTTED,
+            DOTTED_SMALL,
+            BOLD_DOTTED,
+            BOLD_DOTTED_SMALL,
+        )
+    }
+
+    fun draw(start: Pair<Int, Int>, end: Pair<Int, Int>, pixel: (x: Int, y: Int, c: Char) -> Unit) {
+        pixel(start.first, start.second, cornerLeftTop)
+        pixel(end.first, start.second, cornerRightTop)
+        pixel(start.first, end.second, cornerLeftBottom)
+        pixel(end.first, end.second, cornerRightBottom)
+
+        fun row(row: Int) {
+            for (col in start.first+1..<end.first) {
+                pixel(col, row, horizontal)
+            }
+        }
+
+        fun col(col: Int) {
+            for (row in start.second+1..<end.second) {
+                pixel(col, row, vertical)
+            }
+        }
+
+        row(start.second)
+        row(end.second)
+
+        col(start.first)
+        col(end.first)
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/blitz/str/MutMultiColoredMultiLineString.kt b/src/main/kotlin/blitz/str/MutMultiColoredMultiLineString.kt
index 2786900..d116d9c 100644
--- a/src/main/kotlin/blitz/str/MutMultiColoredMultiLineString.kt
+++ b/src/main/kotlin/blitz/str/MutMultiColoredMultiLineString.kt
@@ -1,6 +1,7 @@
 package blitz.str
 
 import blitz.term.AnsiiMode
+import blitz.term.Terminal
 
 class MutMultiColoredMultiLineString(
      var fill: ColoredChar
@@ -104,6 +105,10 @@ class MutMultiColoredMultiLineString(
         }
     }
 
+    fun box(start: Pair<Int, Int>, end: Pair<Int, Int>, set: BoxDrawingCharSet, style: AnsiiMode = AnsiiMode(mutableListOf())) {
+        set.draw(start, end) { x, y, c -> this[y, x] = ColoredChar(c, style) }
+    }
+
     override fun toString(): String =
         lines.joinToString(separator = "\n")
 }
\ No newline at end of file
diff --git a/src/main/kotlin/blitz/str/MutMultiLineString.kt b/src/main/kotlin/blitz/str/MutMultiLineString.kt
index f2b5f59..250e2ee 100644
--- a/src/main/kotlin/blitz/str/MutMultiLineString.kt
+++ b/src/main/kotlin/blitz/str/MutMultiLineString.kt
@@ -64,6 +64,10 @@ class MutMultiLineString(
         }
     }
 
+    fun box(start: Pair<Int, Int>, end: Pair<Int, Int>, set: BoxDrawingCharSet) {
+        set.draw(start, end) { x, y, c -> this[y, x] = c }
+    }
+
     override fun toString(): String =
         lines.joinToString(separator = "\n")