Switch to a non-functional Rust skeleton

README.md

@@ -13,24 +13,27 @@ Delta has:
 * An electron [desktop application](https://github.com/deltachat/deltachat-desktop)
 
 This project is a [libpurple](https://developer.pidgin.im/wiki/WhatIsLibpurple)
-plugin that wraps `deltachat-core`, allowing a number of existing desktop and
+plugin that wraps `deltachat-core-rust`, allowing a number of existing desktop and
 mobile clients to send and receive IMs over SMTP+IMAP. It may be useful for
 [Linux-based mobile devices](https://source.puri.sm/Librem5/chatty), for
-GUI desktop usage **without** an Electron dependency, or console desktop usage.
+GUI desktop usage **without** an Electron dependency, or desktop usage.
 
-Current status is probably best described as "skunkworks", although connecting
-to an account and sending / receiving text and image messages should work
-reliably in pidgin. Chatty supports text messages, and can be coaxed into using
-this plugin, but there's a long way to go with that yet.
+## Current status
 
-A big refactoring to use "proper" purple IM structures is necessary to make
-further progress, I think.
+Starting again from scratch in Rust. So currently, nothing works. TODO list:
+
+- [~] Connect to email account
+- [ ] Full settings support
+- [ ] Show buddy list
+- [ ] Send/receive text messages to single contact
+- [ ] Send/receive text messages to group chat
+- [ ] IMEX setup
+- [ ] Send/receive image messages
+- [ ] Send/receive audio messages
+- [ ] Send/receive video messages
+- [ ] Send/receive arbitrary attachments
 
-I also need to implement support for the buddy list.
 
-We currrently build against deltachat v1.50.0. You'll need to build and install
-deltachat-ffi separately and ensure that it's available via `pkg-config` for
-deltachat to install.
 
 ## Build
 
@@ -47,17 +50,17 @@ There's no point to `purple-plugin-delta` adding the OpenSSL exemption because
 `libpurple` lacks it, and in any event, it will be unnecessary with the next
 major version of OpenSSL. So, time should resolve this for us one way or another.
 
+Significant code using the WTFPL includes the [libpurple-rust bindings](https://github.com/sbwtw/libpurple-rust)
+and the [pidgin-wechat plugin](https://github.com/sbwtw/pidgin-wechat), which
+I'm taking a lot of inspiration from. WTF I like happens to include building it
+against this mess.
+
 ## Use
 
 The easiest way to use this is to copy the `libdelta.so` file into
 `~/.purple/plugins`. When running pidgin, you'll now have the option to add
 a "Delta Chat" account.
 
-If it doesn't show up, chances are pidgin can't find the various shared
-libraries the .so depends on. You can run `ldd ~/.purple/plugins/libdelta.so`
-to confirm. I'll document fixing this after the build and install system is
-settled.
-
 At present, the "Username" and "Password" account fields correspond to email
 address and password, respectively. Many important settings also show up on the
 "Advanced" tab - if left blank, the plugin will attempt to automatically detect