Init nostr-sdk-fbs crate

Makefile

@@ -9,5 +9,8 @@ clean:
 book:
 	cd book && make build
 
+flatbuffers:
+	cd crates/nostr-sdk-fbs && make
+
 loc:
 	@echo "--- Counting lines of .rs files (LOC):" && find crates/ bindings/ -type f -name "*.rs" -exec cat {} \; | wc -l

crates/nostr-sdk-fbs/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "nostr-sdk-fbs"
+version = "0.1.0"
+edition = "2021"
+homepage.workspace = true
+repository.workspace = true
+license.workspace = true
+
+[dependencies]
+flatbuffers = "23.5"
+nostr = { version = "0.24", path = "../nostr", default-features = false, features = ["std"] }

crates/nostr-sdk-fbs/Makefile

@@ -0,0 +1,4 @@
+all: build
+
+build:
+	flatc --rust -o ./src/ ./fbs/event.fbs

crates/nostr-sdk-fbs/fbs/event.fbs

@@ -0,0 +1,21 @@
+namespace EventFbs;
+
+struct Fixed32Bytes {
+    val: [ubyte:32];
+}
+
+struct Fixed64Bytes {
+    val: [ubyte:64];
+}
+
+table Event {
+  id: Fixed32Bytes;
+  pubkey: Fixed32Bytes;
+  created_at: ulong;
+  kind: ulong;
+  tags: [string];
+  content: string;
+  sig: Fixed64Bytes;
+}
+
+root_type Event;