Update defaults

Chapters/01-base64.qmd

@@ -7,6 +7,10 @@ syntax-definition: "../Assets/zig.xml"
 ```{r}
 #| include: false
 source("../zig_engine.R")
+knitr::opts_chunk$set(
+    auto_main = FALSE,
+    build_type = "lib"
+)
 ```
 
 
@@ -480,6 +484,7 @@ in the base64 scale.
 
 ```{zig}
 #| auto_main: false
+#| build_type: "run"
 const std = @import("std");
 const stdout = std.io.getStdOut().writer();
 pub fn main() !void {
@@ -539,6 +544,7 @@ are setted to zero in the output sequence, which is `00010000` (is the number 16
 
 ```{zig}
 #| auto_main: false
+#| build_type: "run"
 const std = @import("std");
 const stdout = std.io.getStdOut().writer();
 pub fn main() !void {