docs: add landing page

Author: thunderbiscuit

website/docs/assets/screenshot1.png

@@ -1,166 +1,30 @@
 ---
-icon: lucide/rocket
+icon: lucide/info
 ---
 
-# Get started
+# About the Devkit Wallet
 
-For full documentation visit [zensical.org](https://zensical.org/docs/).
+The Devkit Wallet is the Android sample app for the Bitcoin Development Kit. It's a bitcoin wallet that works with the Regtest, Signet, and Testnet4 bitcoin networks.
 
-## Commands
+<br>
 
-* [`zensical new`][new] - Create a new project
-* [`zensical serve`][serve] - Start local web server
-* [`zensical build`][build] - Build your site
+<div class="grid cards" markdown>
 
-  [new]: https://zensical.org/docs/usage/new/
-  [serve]: https://zensical.org/docs/usage/preview/
-  [build]: https://zensical.org/docs/usage/build/
-
-## Examples
-
-### Admonitions
-
-> Go to [documentation](https://zensical.org/docs/authoring/admonitions/)
-
-!!! note
-
-    This is a **note** admonition. Use it to provide helpful information.
-
-!!! warning
-
-    This is a **warning** admonition. Be careful!
-
-### Details
-
-> Go to [documentation](https://zensical.org/docs/authoring/admonitions/#collapsible-blocks)
-
-??? info "Click to expand for more info"
+-   ### Onboarding
 
-    This content is hidden until you click to expand it.
-    Great for FAQs or long explanations.
-
-## Code Blocks
-
-> Go to [documentation](https://zensical.org/docs/authoring/code-blocks/)
-
-``` python hl_lines="2" title="Code blocks"
-def greet(name):
-    print(f"Hello, {name}!") # (1)!
-
-greet("Python")
-```
-
-1.  > Go to [documentation](https://zensical.org/docs/authoring/code-blocks/#code-annotations)
-
-    Code annotations allow to attach notes to lines of code.
-
-Code can also be highlighted inline: `#!python print("Hello, Python!")`.
-
-## Content tabs
-
-> Go to [documentation](https://zensical.org/docs/authoring/content-tabs/)
-
-=== "Python"
-
-    ``` python
-    print("Hello from Python!")
-    ```
-
-=== "Rust"
+    ---
 
-    ``` rs
-    println!("Hello from Rust!");
-    ```
+    <img src="assets/screenshot1.png" style="max-width: 200px; display: block; margin: auto; margin-bottom: 1em;" alt="Onboarding" />
 
-## Diagrams
+    Onboarding screens.
 
-> Go to [documentation](https://zensical.org/docs/authoring/diagrams/)
-
-``` mermaid
-graph LR
-  A[Start] --> B{Error?};
-  B -->|Yes| C[Hmm...];
-  C --> D[Debug];
-  D --> B;
-  B ---->|No| E[Yay!];
-```
-
-## Footnotes
-
-> Go to [documentation](https://zensical.org/docs/authoring/footnotes/)
-
-Here's a sentence with a footnote.[^1]
-
-Hover it, to see a tooltip.
-
-[^1]: This is the footnote.
-
-
-## Formatting
-
-> Go to [documentation](https://zensical.org/docs/authoring/formatting/)
-
-- ==This was marked (highlight)==
-- ^^This was inserted (underline)^^
-- ~~This was deleted (strikethrough)~~
-- H~2~O
-- A^T^A
-- ++ctrl+alt+del++
-
-## Icons, Emojis
-
-> Go to [documentation](https://zensical.org/docs/authoring/icons-emojis/)
-
-* :sparkles: `:sparkles:`
-* :rocket: `:rocket:`
-* :tada: `:tada:`
-* :memo: `:memo:`
-* :eyes: `:eyes:`
-
-## Maths
-
-> Go to [documentation](https://zensical.org/docs/authoring/math/)
-
-$$
-\cos x=\sum_{k=0}^{\infty}\frac{(-1)^k}{(2k)!}x^{2k}
-$$
-
-!!! warning "Needs configuration"
-    Note that MathJax is included via a `script` tag on this page and is not
-    configured in the generated default configuration to avoid including it
-    in a pages that do not need it. See the documentation for details on how
-    to configure it on all your pages if they are more Maths-heavy than these
-    simple starter pages.
-
-<script id="MathJax-script" async src="https://unpkg.com/mathjax@3/es5/tex-mml-chtml.js"></script>
-<script>
-  window.MathJax = {
-    tex: {
-      inlineMath: [["\\(", "\\)"]],
-      displayMath: [["\\[", "\\]"]],
-      processEscapes: true,
-      processEnvironments: true
-    },
-    options: {
-      ignoreHtmlClass: ".*|",
-      processHtmlClass: "arithmatex"
-    }
-  };
-</script>
-
-## Task Lists
-
-> Go to [documentation](https://zensical.org/docs/authoring/lists/#using-task-lists)
-
-* [x] Install Zensical
-* [x] Configure `zensical.toml`
-* [x] Write amazing documentation
-* [ ] Deploy anywhere
+-   ### Wallet
+    
+    ---
 
-## Tooltips
+    <img src="assets/screenshot2.png" style="max-width: 200px; display: block; margin: auto; margin-bottom: 1em;" alt="Onboarding" />
 
-> Go to [documentation](https://zensical.org/docs/authoring/tooltips/)
+    Wallet screen.
 
-[Hover me][example]
 
-  [example]: https://example.com "I'm a tooltip!"
+</div>

website/docs/assets/screenshot2.png

@@ -1,17 +1,5 @@
-# ============================================================================
-#
-# The configuration produced by default is meant to highlight the features
-# that Zensical provides and to serve as a starting point for your own
-# projects.
-#
-# ============================================================================
-
 [project]
-
-# The site_name is shown in the page header and the browser window title
-#
-# Read more: https://zensical.org/docs/setup/basics/#site_name
-site_name = "Documentation"
+site_name = "Devkit Wallet"
 
 # The site_description is included in the HTML head and should contain a
 # meaningful description of the site content for use by search engines.
@@ -37,17 +25,9 @@ copyright = """
 Copyright © 2026 The authors
 """
 
-# Zensical supports both implicit navigation and explicitly defined navigation.
-# If you decide not to define a navigation here then Zensical will simply
-# derive the navigation structure from the directory structure of your
-# "docs_dir". The definition below demonstrates how a navigation structure
-# can be defined using TOML syntax.
-#
-# Read more: https://zensical.org/docs/setup/navigation/
-# nav = [
-#   { "Get started" = "index.md" },
-#   { "Markdown in 5min" = "markdown.md" },
-# ]
+nav = [
+  { "About" = "index.md" },
+]
 
 # With the "extra_css" option you can add your own CSS styling to customize
 # your Zensical project according to your needs. You can add any number of