diff --git a/.demos/example.md b/.demos/example.md
new file mode 100644
index 0000000..70762be
--- /dev/null
+++ b/.demos/example.md
@@ -0,0 +1,17 @@
+---
+hello: "world"
+---
+
+# Lorem Ipsum
+
+[Lorem ipsum](https://en.wikipedia.org/wiki/Lorem_ipsum) dolor sit amet, labore culpa sint ad nisi
+Lorem pariatur mollit ex esse exercitation amet. Nisi anim cupidatat excepteur officia.
+Reprehenderit nostrud nostrud ipsum Lorem est aliquip amet voluptate voluptate dolor minim nulla est
+proident. Nostrud officia pariatur ut officia. Sit irure elit esse ea nulla sunt ex occaecat
+reprehenderit commodo officia dolor [Lorem](https://github.com/LoredDev) duis laboris cupidatat
+officia voluptate. Culpa proident adipisicing id nulla nisi laboris ex in Lorem sunt duis officia
+eiusmod. Aliqua reprehenderit commodo ex non excepteur duis sunt velit enim. Voluptate laboris sint
+cupidatat ullamco ut ea consectetur et est culpa et culpa [guz](https://guz.one)
+
+> Lorem ipsum dolor sit [amet](https://guzsdaily.tumblr.com), qui minim labore adipisicing minim
+> sint.
diff --git a/.demos/example.npf.md b/.demos/example.npf.md
new file mode 100644
index 0000000..0a7d4b8
--- /dev/null
+++ b/.demos/example.npf.md
@@ -0,0 +1,25 @@
+---
+world: hello
+---
+
+# Hello world
+
+[Lorem](https://github.com/guz013) ipsum dolor sit amet, officia excepteur ex fugiat
+[reprehenderit](https://tumblr.com/guzsdaily) enim labore culpa sint ad nisi Lorem pariatur mollit\
+hello\
+ex esse exercitation amet. Nisi anim cupidatat excepteur officia. Reprehenderit ~nostrud nostrud
+ipsum Lorem est aliquip~ amet voluptate voluptate dolor minim nulla est *proi*dent. **Nostrud
+officia pariatur ut officia.** Sit irure elit esse ea nulla sunt ex occaecat reprehenderit commodo
+officia dolor Lorem duis laboris cupidatat officia voluptate. Culpa proident adipisicing id nulla
+nisi laboris ex in Lorem sunt duis officia eiusmod. Aliqua reprehenderit commodo ex non excepteur
+duis sunt velit enim. ***Voluptate* laboris sint cupidatat ullamco ut ea consectetur *et est culpa
+et* culpa duis**.
+
+![image](./image.png)
+
+### Hello world
+
+> Lorem ipsum dolor sit amet, qui minim labore adipisicing minim sint cillum sint consectetur
+> cupidatat.
+>
+> Intented next line yadda yadda.
diff --git a/.demos/example.out.md b/.demos/example.out.md
new file mode 100644
index 0000000..cc94695
--- /dev/null
+++ b/.demos/example.out.md
@@ -0,0 +1,13 @@
+# Lorem Ipsum
+
+[Lorem ipsum](https://en.wikipedia.org/wiki/Lorem_ipsum) dolor sit amet, labore culpa sint ad nisi
+Lorem pariatur mollit ex esse exercitation amet. Nisi anim cupidatat excepteur officia.
+Reprehenderit nostrud nostrud ipsum Lorem est aliquip amet voluptate voluptate dolor minim nulla est
+proident. Nostrud officia pariatur ut officia. Sit irure elit esse ea nulla sunt ex occaecat
+reprehenderit commodo officia dolor [Lorem](https://github.com/LoredDev) duis laboris cupidatat
+officia voluptate. Culpa proident adipisicing id nulla nisi laboris ex in Lorem sunt duis officia
+eiusmod. Aliqua reprehenderit commodo ex non excepteur duis sunt velit enim. Voluptate laboris sint
+cupidatat ullamco ut ea consectetur et est culpa et culpa [guz](https://guz.tumblr.com)
+
+> Lorem ipsum dolor sit [amet](https://guzsdaily.tumblr.com), qui minim labore adipisicing minim
+> sint.
diff --git a/.demos/frontmatter-set.gif b/.demos/frontmatter-set.gif
new file mode 100644
index 0000000..13c4c71
Binary files /dev/null and b/.demos/frontmatter-set.gif differ
diff --git a/.demos/frontmatter-set.tape b/.demos/frontmatter-set.tape
new file mode 100644
index 0000000..ca7bda4
--- /dev/null
+++ b/.demos/frontmatter-set.tape
@@ -0,0 +1,110 @@
+# VHS documentation
+#
+# Output:
+#   Output <path>.gif               Create a GIF output at the given <path>
+#   Output <path>.mp4               Create an MP4 output at the given <path>
+#   Output <path>.webm              Create a WebM output at the given <path>
+#
+# Require:
+#   Require <string>                Ensure a program is on the $PATH to proceed
+#
+# Settings:
+#   Set FontSize <number>           Set the font size of the terminal
+#   Set FontFamily <string>         Set the font family of the terminal
+#   Set Height <number>             Set the height of the terminal
+#   Set Width <number>              Set the width of the terminal
+#   Set LetterSpacing <float>       Set the font letter spacing (tracking)
+#   Set LineHeight <float>          Set the font line height
+#   Set LoopOffset <float>%         Set the starting frame offset for the GIF loop
+#   Set Theme <json|string>         Set the theme of the terminal
+#   Set Padding <number>            Set the padding of the terminal
+#   Set Framerate <number>          Set the framerate of the recording
+#   Set PlaybackSpeed <float>       Set the playback speed of the recording
+#   Set MarginFill <file|#000000>   Set the file or color the margin will be filled with.
+#   Set Margin <number>             Set the size of the margin. Has no effect if MarginFill isn't set.
+#   Set BorderRadius <number>       Set terminal border radius, in pixels.
+#   Set WindowBar <string>          Set window bar type. (one of: Rings, RingsRight, Colorful, ColorfulRight)
+#   Set WindowBarSize <number>      Set window bar size, in pixels. Default is 40.
+#   Set TypingSpeed <time>          Set the typing speed of the terminal. Default is 50ms.
+#
+# Sleep:
+#   Sleep <time>                    Sleep for a set amount of <time> in seconds
+#
+# Type:
+#   Type[@<time>] "<characters>"    Type <characters> into the terminal with a
+#                                   <time> delay between each character
+#
+# Keys:
+#   Escape[@<time>] [number]        Press the Escape key
+#   Backspace[@<time>] [number]     Press the Backspace key
+#   Delete[@<time>] [number]        Press the Delete key
+#   Insert[@<time>] [number]        Press the Insert key
+#   Down[@<time>] [number]          Press the Down key
+#   Enter[@<time>] [number]         Press the Enter key
+#   Space[@<time>] [number]         Press the Space key
+#   Tab[@<time>] [number]           Press the Tab key
+#   Left[@<time>] [number]          Press the Left Arrow key
+#   Right[@<time>] [number]         Press the Right Arrow key
+#   Up[@<time>] [number]            Press the Up Arrow key
+#   Down[@<time>] [number]          Press the Down Arrow key
+#   PageUp[@<time>] [number]        Press the Page Up key
+#   PageDown[@<time>] [number]      Press the Page Down key
+#   Ctrl+<key>                      Press the Control key + <key> (e.g. Ctrl+C)
+#
+# Display:
+#   Hide                            Hide the subsequent commands from the output
+#   Show                            Show the subsequent commands in the output
+
+Require jq
+Require glow
+
+Output ./.demos/frontmatter-set.gif
+
+Set Shell "zsh"
+Set FontSize 14
+Set FontFamily "Fira Code"
+Set Width 1200
+Set Height 600
+
+Hide
+Type@1ms "clear"
+Enter
+Show
+
+Type "cat ./.demos/example.md"
+Sleep 500ms
+Enter
+Sleep 3s
+
+Type "clear"
+Sleep 500ms
+Enter
+
+Type "./mdparser frontmatter"
+Sleep 300ms
+Type " --set-value another-hello 'from demo'"
+Sleep 300ms
+Type " ./.demos/example.md"
+Sleep 500ms
+Enter
+
+Sleep 3s
+
+Type "clear"
+Sleep 500ms
+Enter
+
+Type "./mdparser frontmatter"
+Sleep 300ms
+Type " --rename-prop hello renamed-hello"
+Sleep 300ms
+Type " ./.demos/example.md"
+Sleep 500ms
+Enter
+
+Sleep 3s
+
+Type "clear"
+Sleep 500ms
+Enter
+Sleep 1000ms
diff --git a/.demos/links-list.gif b/.demos/links-list.gif
new file mode 100644
index 0000000..e9c350d
Binary files /dev/null and b/.demos/links-list.gif differ
diff --git a/.demos/links-list.tape b/.demos/links-list.tape
new file mode 100644
index 0000000..7c65127
--- /dev/null
+++ b/.demos/links-list.tape
@@ -0,0 +1,112 @@
+# VHS documentation
+#
+# Output:
+#   Output <path>.gif               Create a GIF output at the given <path>
+#   Output <path>.mp4               Create an MP4 output at the given <path>
+#   Output <path>.webm              Create a WebM output at the given <path>
+#
+# Require:
+#   Require <string>                Ensure a program is on the $PATH to proceed
+#
+# Settings:
+#   Set FontSize <number>           Set the font size of the terminal
+#   Set FontFamily <string>         Set the font family of the terminal
+#   Set Height <number>             Set the height of the terminal
+#   Set Width <number>              Set the width of the terminal
+#   Set LetterSpacing <float>       Set the font letter spacing (tracking)
+#   Set LineHeight <float>          Set the font line height
+#   Set LoopOffset <float>%         Set the starting frame offset for the GIF loop
+#   Set Theme <json|string>         Set the theme of the terminal
+#   Set Padding <number>            Set the padding of the terminal
+#   Set Framerate <number>          Set the framerate of the recording
+#   Set PlaybackSpeed <float>       Set the playback speed of the recording
+#   Set MarginFill <file|#000000>   Set the file or color the margin will be filled with.
+#   Set Margin <number>             Set the size of the margin. Has no effect if MarginFill isn't set.
+#   Set BorderRadius <number>       Set terminal border radius, in pixels.
+#   Set WindowBar <string>          Set window bar type. (one of: Rings, RingsRight, Colorful, ColorfulRight)
+#   Set WindowBarSize <number>      Set window bar size, in pixels. Default is 40.
+#   Set TypingSpeed <time>          Set the typing speed of the terminal. Default is 50ms.
+#
+# Sleep:
+#   Sleep <time>                    Sleep for a set amount of <time> in seconds
+#
+# Type:
+#   Type[@<time>] "<characters>"    Type <characters> into the terminal with a
+#                                   <time> delay between each character
+#
+# Keys:
+#   Escape[@<time>] [number]        Press the Escape key
+#   Backspace[@<time>] [number]     Press the Backspace key
+#   Delete[@<time>] [number]        Press the Delete key
+#   Insert[@<time>] [number]        Press the Insert key
+#   Down[@<time>] [number]          Press the Down key
+#   Enter[@<time>] [number]         Press the Enter key
+#   Space[@<time>] [number]         Press the Space key
+#   Tab[@<time>] [number]           Press the Tab key
+#   Left[@<time>] [number]          Press the Left Arrow key
+#   Right[@<time>] [number]         Press the Right Arrow key
+#   Up[@<time>] [number]            Press the Up Arrow key
+#   Down[@<time>] [number]          Press the Down Arrow key
+#   PageUp[@<time>] [number]        Press the Page Up key
+#   PageDown[@<time>] [number]      Press the Page Down key
+#   Ctrl+<key>                      Press the Control key + <key> (e.g. Ctrl+C)
+#
+# Display:
+#   Hide                            Hide the subsequent commands from the output
+#   Show                            Show the subsequent commands in the output
+
+Require jq
+Require glow
+
+Output ./.demos/links-list.gif
+
+Set Shell "zsh"
+Set FontSize 14
+Set FontFamily "Fira Code"
+Set Width 1200
+Set Height 600
+
+Hide
+Type@1ms "clear"
+Enter
+Show
+
+Type "glow ./.demos/example.md"
+Sleep 500ms
+Enter
+Sleep 3s
+
+Type "clear"
+Sleep 500ms
+Enter
+
+Type "./mdparser links -i ./.demos/example.md"
+Sleep 500ms
+Enter
+
+Sleep 3s
+
+Enter
+Type "./mdparser links -i ./.demos/example.md"
+Sleep 300ms
+Type " --list-format comma"
+Sleep 500ms
+Enter
+
+Sleep 3s
+
+Enter
+Type "./mdparser links -i ./.demos/example.md"
+Sleep 300ms
+Type " --list-format json"
+Sleep 200ms
+Type " | jq ."
+Sleep 500ms
+Enter
+
+Sleep 5s
+
+Type "clear"
+Sleep 500ms
+Enter
+Sleep 1000ms
diff --git a/.demos/links-replace.gif b/.demos/links-replace.gif
new file mode 100644
index 0000000..1be1434
Binary files /dev/null and b/.demos/links-replace.gif differ
diff --git a/.demos/links-replace.tape b/.demos/links-replace.tape
new file mode 100644
index 0000000..e4c72e3
--- /dev/null
+++ b/.demos/links-replace.tape
@@ -0,0 +1,118 @@
+# VHS documentation
+#
+# Output:
+#   Output <path>.gif               Create a GIF output at the given <path>
+#   Output <path>.mp4               Create an MP4 output at the given <path>
+#   Output <path>.webm              Create a WebM output at the given <path>
+#
+# Require:
+#   Require <string>                Ensure a program is on the $PATH to proceed
+#
+# Settings:
+#   Set FontSize <number>           Set the font size of the terminal
+#   Set FontFamily <string>         Set the font family of the terminal
+#   Set Height <number>             Set the height of the terminal
+#   Set Width <number>              Set the width of the terminal
+#   Set LetterSpacing <float>       Set the font letter spacing (tracking)
+#   Set LineHeight <float>          Set the font line height
+#   Set LoopOffset <float>%         Set the starting frame offset for the GIF loop
+#   Set Theme <json|string>         Set the theme of the terminal
+#   Set Padding <number>            Set the padding of the terminal
+#   Set Framerate <number>          Set the framerate of the recording
+#   Set PlaybackSpeed <float>       Set the playback speed of the recording
+#   Set MarginFill <file|#000000>   Set the file or color the margin will be filled with.
+#   Set Margin <number>             Set the size of the margin. Has no effect if MarginFill isn't set.
+#   Set BorderRadius <number>       Set terminal border radius, in pixels.
+#   Set WindowBar <string>          Set window bar type. (one of: Rings, RingsRight, Colorful, ColorfulRight)
+#   Set WindowBarSize <number>      Set window bar size, in pixels. Default is 40.
+#   Set TypingSpeed <time>          Set the typing speed of the terminal. Default is 50ms.
+#
+# Sleep:
+#   Sleep <time>                    Sleep for a set amount of <time> in seconds
+#
+# Type:
+#   Type[@<time>] "<characters>"    Type <characters> into the terminal with a
+#                                   <time> delay between each character
+#
+# Keys:
+#   Escape[@<time>] [number]        Press the Escape key
+#   Backspace[@<time>] [number]     Press the Backspace key
+#   Delete[@<time>] [number]        Press the Delete key
+#   Insert[@<time>] [number]        Press the Insert key
+#   Down[@<time>] [number]          Press the Down key
+#   Enter[@<time>] [number]         Press the Enter key
+#   Space[@<time>] [number]         Press the Space key
+#   Tab[@<time>] [number]           Press the Tab key
+#   Left[@<time>] [number]          Press the Left Arrow key
+#   Right[@<time>] [number]         Press the Right Arrow key
+#   Up[@<time>] [number]            Press the Up Arrow key
+#   Down[@<time>] [number]          Press the Down Arrow key
+#   PageUp[@<time>] [number]        Press the Page Up key
+#   PageDown[@<time>] [number]      Press the Page Down key
+#   Ctrl+<key>                      Press the Control key + <key> (e.g. Ctrl+C)
+#
+# Display:
+#   Hide                            Hide the subsequent commands from the output
+#   Show                            Show the subsequent commands in the output
+
+Require jq
+Require glow
+
+Output ./.demos/links-replace.gif
+
+Set Shell "zsh"
+Set FontSize 14
+Set FontFamily "Fira Code"
+Set Width 1200
+Set Height 600
+
+Hide
+Type@1ms "clear"
+Enter
+Show
+
+Type "glow ./.demos/example.md"
+Sleep 500ms
+Enter
+Sleep 3s
+
+Type "./mdparser links -i ./.demos/example.md"
+Sleep 500ms
+Type " --replace-url 'https://guz.one' 'https://code.guz.one'"
+Sleep 500ms
+Type " | glow"
+Sleep 500ms
+Enter
+
+Sleep 5s
+
+Type "clear"
+Sleep 500ms
+Enter
+Sleep 1s
+
+Type "glow ./.demos/example.md"
+Sleep 500ms
+Enter
+Sleep 3s
+
+Type "./mdparser links -i ./.demos/example.md -o ./.demos/example.out.md \"
+Enter
+Sleep 500ms
+Type "-r 'https://guz.one' 'https://code.guz.one' \"
+Enter
+Sleep 500ms
+Type "-r 'https://guzsdaily.tumblr.com' 'https://tumblr.com/guzsdaily'"
+Enter
+
+Sleep 2s
+
+Type "glow ./.demos/example.out.md"
+Sleep 500ms
+Enter
+Sleep 5s
+
+Type "clear"
+Sleep 500ms
+Enter
+Sleep 1s