confirm all requs are met before starting

.gitignore

@@ -14,3 +14,5 @@ Cargo.lock
 # MSVC Windows builds of rustc generate these, which store debugging information
 *.pdb
 
+# Emacs ignore autosaved
+*~

README.md

@@ -1,3 +0,0 @@
-# spin-rust-components
-
-Going through https://developer.fermyon.com/spin/v2/rust-components

README.org

@@ -0,0 +1,58 @@
+#+title: Building Spin components in Rust
+#+date:[2023-11-21 Tue]
+#+author: HaQadosch
+#+startup: indent
+#+note: based on https://developer.fermyon.com/spin/v2/rust-components
+* Org shortcuts
+** Footnotes
+- create footnote :: ~C-c C-x f~
+- jump to the footnote ref :: ~C-c C-c~
+* Prerequisites
+Make sure you have all the *templates*
+#+name: check templates
+#+begin_src shell
+  spin templates install --git https://github.com/fermyon/spin --update
+#+end_src
+
+#+RESULTS: check templates
+: Copying remote template source
+: Installing template http-zig...
+: Installing template redis-rust...
+: Installing template http-empty...
+: Installing template redis-go...
+: Installing template http-rust...
+: Installing template http-grain...
+: Installing template http-c...
+: Installing template http-go...
+: Installing template http-php...
+: Installing template static-fileserver...
+: Installing template http-swift...
+: Installing template redirect...
+: Installed 12 template(s)
+:
+: +------------------------------------------------------------------------+
+: | Name                Description                                        |
+: +========================================================================+
+: | http-c              HTTP request handler using C and the Zig toolchain |
+: | http-empty          HTTP application with no components                |
+: | http-go             HTTP request handler using (Tiny)Go                |
+: | http-grain          HTTP request handler using Grain                   |
+: | http-php            HTTP request handler using PHP                     |
+: | http-rust           HTTP request handler using Rust                    |
+: | http-swift          HTTP request handler using SwiftWasm               |
+: | http-zig            HTTP request handler using Zig                     |
+: | redirect            Redirects a HTTP route                             |
+: | redis-go            Redis message handler using (Tiny)Go               |
+: | redis-rust          Redis message handler using Rust                   |
+: | static-fileserver   Serves static files from an asset directory        |
+: +------------------------------------------------------------------------+
+
+Spin component need ~wasm32-wasi~ target for *Rust*
+#+name: target for Rust
+#+begin_src shell
+  rustup target add wasm32-wasi
+#+end_src
+
+#+RESULTS: target for Rust
+: info: component 'rust-std' for target 'wasm32-wasi' is up to date
+* HTTP Components