diff --git a/README.md b/README.md
index a2e74c9..9f39ba7 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,30 @@
 
 Command-line tool to encode and decode arbitrary protobuf data.
 
+
+## Installation
+
+This program requires Crystal. See: https://crystal-lang.org/install/
+
+### Standalone
+
+1. Clone: `git clone https://github.com/iv-org/protodec && cd protodec`
+2. Build: `crystal build src/protodec.cr`
+3. See [Usage](#Usage) below
+
+
+### As a Crystal library
+
+Add this to your application's `shard.yml`:
+
+```yaml
+dependencies:
+  protodec:
+    github: iv-org/protodec
+    version: ~> 0.1.5
+```
+
+
 ## Usage
 
 ```
@@ -57,9 +81,13 @@ $ echo 'CkEKCeOCj+OBn+OBlxDSCSIQWmQ730+N8z8tsp3vp8YJQCoSCAESBzA4MDAwMDAaBQ26sSZE
 }
 ```
 
+## Windows
+
+Windows users can run the binaries in a linux-on-windows tool (like Git bash or WSL) or use the official [protobuf binaries](https://github.com/protocolbuffers/protobuf/releases) to encode/decode protobuf data.
+
 ## Contributing
 
-1. Fork it (<https://github.com/omarroth/protodec/fork>)
+1. Fork it (<https://github.com/iv-org/protodec/fork>)
 2. Create your feature branch (`git checkout -b my-new-feature`)
 3. Commit your changes (`git commit -am 'Add some feature'`)
 4. Push to the branch (`git push origin my-new-feature`)
diff --git a/shard.yml b/shard.yml
index 67f01b8..33c49db 100644
--- a/shard.yml
+++ b/shard.yml
@@ -1,13 +1,14 @@
 name: protodec
-version: 0.1.1
+version: 0.1.5
 
 authors:
   - Omar Roth <omarroth@protonmail.com>
+  - Invidous team
 
 targets:
   protodec:
     main: src/protodec.cr
 
-crystal: 0.31.1
+crystal: ">= 0.34.0, < 2.0.0"
 
 license: GPLv3
diff --git a/spec/protodec_spec.cr b/spec/protodec_spec.cr
index 8575d4b..875161a 100644
--- a/spec/protodec_spec.cr
+++ b/spec/protodec_spec.cr
@@ -2,7 +2,7 @@ require "./spec_helper"
 
 describe Protodec do
   it "decodes Base64 data" do
-    input = "4qmFsgIrEhhVQ0NqOTU2SUY2MkZiVDdHb3VzemFqOXcaD0VnbGpiMjF0ZFc1cGRIaw"
+    input = "4qmFsgIsEhhVQ0NqOTU2SUY2MkZiVDdHb3VzemFqOXcaEEVnbGpiMjF0ZFc1cGRIaz0"
     output = input.strip
       .try { |i| URI.decode_www_form(i) }
       .try { |i| URI.decode_www_form(i) }
@@ -24,6 +24,6 @@ describe Protodec do
       },
     })
 
-    Base64.urlsafe_encode(Protodec::Any.from_json(object), padding: false).should eq("4qmFsgIrEhhVQ0NqOTU2SUY2MkZiVDdHb3VzemFqOXcaD0VnbGpiMjF0ZFc1cGRIaw")
+    Base64.urlsafe_encode(Protodec::Any.from_json(object), padding: false).should eq("4qmFsgIsEhhVQ0NqOTU2SUY2MkZiVDdHb3VzemFqOXcaEEVnbGpiMjF0ZFc1cGRIaz0")
   end
 end
diff --git a/src/protodec/utils.cr b/src/protodec/utils.cr
index df9faf3..6c7c509 100644
--- a/src/protodec/utils.cr
+++ b/src/protodec/utils.cr
@@ -200,7 +200,7 @@ module Protodec
             from_json(value, buffer)
             buffer.rewind
 
-            buffer = Base64.urlsafe_encode(buffer, padding: false)
+            buffer = Base64.urlsafe_encode(buffer)
             VarLong.to_io(io, buffer.bytesize.to_i64)
             buffer.to_s(io)
           when "embedded"
@@ -213,6 +213,9 @@ module Protodec
           when "bytes"
             VarLong.to_io(io, value.size.to_i64)
             value.as_a.each { |byte| io.write_byte byte.as_i.to_u8 }
+          else # "string"
+            VarLong.to_io(io, value.to_s.bytesize.to_i64)
+            io.print value.to_s
           end
         end
       else
@@ -465,13 +468,22 @@ module Protodec
       Any.new(raw.clone)
     end
 
-    def self.cast_json(object)
-      raise "Invalid type" if !object.is_a?(Hash)
-
+    def self.cast_json(object : Hash)
       JSON::Any.new(object.transform_values do |value|
         case value
         when .is_a?(Hash)
           cast_json(value)
+        when .is_a?(Protodec::Any)
+          case raw = value.raw
+          when Array(UInt8)
+            JSON::Any.new(raw.map { |i| JSON::Any.new(i.to_i64) })
+          when Int32
+            JSON::Any.new(raw.to_i64)
+          when Hash(String, Protodec::Any)
+            cast_json(raw)
+          else
+            JSON::Any.new(raw)
+          end
         else
           JSON::Any.new(value)
         end