Add memo to raw txn signing popup

.npmrc

@@ -0,0 +1 @@
+save-exact=true

.nvmrc

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+20.19.6

README.md

@@ -50,4 +50,68 @@ npm run build
 
 ## WASM Modules
 
-WASM binaries are **pre-built and included** in `extension/lib/`. No build required.
+WASM binaries are **pre-built and included** in `@nockbox/iris-sdk`. No build required.
+
+## Local development: publishing `@nockbox/iris-wasm` / `@nockbox/iris-sdk` to a local npm registry
+
+When you make changes to `@nockbox/iris-wasm`, **do not use** `file:` dependencies for Iris. Instead, publish to a **local npm registry** and consume via normal semver versions (so the repo can be checked in using npm-style deps).
+
+### One-time setup (Verdaccio)
+
+Start a local registry:
+
+```bash
+npm i -g verdaccio
+verdaccio --listen 4873
+```
+
+Point only the `@nockbox` scope at Verdaccio:
+
+```bash
+npm config set @nockbox:registry http://localhost:4873
+```
+
+Create a local registry user and login:
+
+```bash
+npm adduser --registry http://localhost:4873
+npm login --registry http://localhost:4873
+```
+
+### Publish workflow
+
+1. **Publish `@nockbox/iris-wasm`** from your local `iris-wasm` repo checkout:
+
+```bash
+# in the iris-wasm package directory
+npm version 0.1.3 --no-git-tag-version
+npm publish --registry http://localhost:4873
+```
+
+2. **Bump + publish `@nockbox/iris-sdk`** (this repo’s `sdk/`):
+
+```bash
+cd sdk
+# update sdk/package.json:
+# - "version": "0.1.2"
+# - "@nockbox/iris-wasm": "0.1.3"
+npm run build
+npm publish --registry http://localhost:4873
+```
+
+3. **Consume in Iris** using normal npm deps (no `file:`):
+
+```bash
+cd ..
+# update package.json:
+# - "@nockbox/iris-sdk": "0.1.2"
+npm install
+```
+
+### Verify what you’re using
+
+```bash
+npm view @nockbox/iris-wasm version --registry http://localhost:4873
+npm view @nockbox/iris-sdk version --registry http://localhost:4873
+npm ls @nockbox/iris-sdk @nockbox/iris-wasm
+```