diff --git a/.eslintrc.json b/.eslintrc.json
index e8a2566..f8a76ac 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -4,7 +4,7 @@
   "parserOptions": {
     "ecmaVersion": 2020,
     "sourceType": "module",
-    "project": "./tsconfig.json"
+    "project": "./tsconfig.eslint.json"
   },
   "plugins": ["@typescript-eslint"],
   "extends": [
@@ -13,19 +13,15 @@
     "plugin:@typescript-eslint/recommended-requiring-type-checking"
   ],
   "rules": {
-    "@typescript-eslint/no-unused-vars": [
-      "error",
-      { "argsIgnorePattern": "^_" }
-    ],
-    "@typescript-eslint/explicit-function-return-type": [
-      "warn",
-      { "allowExpressions": true }
-    ],
+    "@typescript-eslint/no-unused-vars": ["error", { "argsIgnorePattern": "^_" }],
+    "@typescript-eslint/explicit-function-return-type": ["warn", { "allowExpressions": true }],
     "@typescript-eslint/no-explicit-any": "error",
     "@typescript-eslint/no-non-null-assertion": "warn",
     "no-console": ["warn", { "allow": ["warn", "error"] }]
   },
   "env": {
+    "browser": true,
+    "jest": true,
     "node": true,
     "es6": true
   },
diff --git a/TODO.md b/TODO.md
new file mode 100644
index 0000000..95ef18e
--- /dev/null
+++ b/TODO.md
@@ -0,0 +1,104 @@
+# TODO
+
+## P0 - Repository Health
+
+- [x] Fix root `npm test`.
+  - Current state: core tests pass, but root workspace test fails because `@bytegrid/obsidian-plugin` has no `test` script.
+  - Options:
+    - Add a minimal `test` script to `packages/obsidian-plugin/package.json`.
+    - Or change the root test script to run only workspaces that actually have tests.
+
+- [x] Split plugin build from Obsidian vault deployment.
+  - Current state: `npm run build` creates `packages/obsidian-plugin/main.js`, then tries to copy files to `OBSIDIAN_PLUGIN_DIR` from `.env`.
+  - Problem: normal builds are tied to a personal local vault path and can fail in sandbox/CI.
+  - Suggested shape:
+    - `build`: bundle only.
+    - `deploy:obsidian`: copy `main.js`, `manifest.json`, and `styles.css` to the configured vault.
+
+- [x] Fix `npm run lint`.
+  - Current state: ESLint checks test files, but root `tsconfig.json` excludes `**/*.test.ts`, causing parser project errors.
+  - Also fix unsafe type errors in `packages/obsidian-plugin/src/main.ts`.
+  - Options:
+    - Add `tsconfig.eslint.json` including `src` and `tests`.
+    - Or configure ESLint overrides for test files and Obsidian DOM helper types.
+
+- [x] Run Prettier and commit formatting intentionally.
+  - Current state: `npm run format:check` reports formatting issues in core source, tests, README, roadmap, AGENTS, and screenshot guide.
+  - Do this as a separate formatting-only change to keep diffs readable.
+
+## P1 - Correctness
+
+- [ ] Make numeric parsing strict.
+  - Current state: `parseInt` accepts partial values such as `12abc`.
+  - Affected areas:
+    - `packages/core/src/parser.ts`
+    - `packages/core/src/validator.ts`
+  - Use explicit regex validation for size, layout, offsets, and bit ranges before converting to numbers.
+
+- [ ] Validate config enum values at parse or validation time.
+  - Check invalid `layoutUnit`, `colorScheme`, `legendPosition`, `endianness`, and field `color`.
+  - Current parser mostly casts strings without rejecting unsupported values.
+
+- [ ] Add bitfield overlap validation.
+  - Current validator checks bitfield range bounds but does not appear to reject overlapping bitfield definitions inside the same field.
+
+- [ ] Review array type size consistency.
+  - Current validator accepts array types like `uint32_t[4]`, but field size still comes only from `offset`.
+  - Decide whether to warn/reject mismatches between declared type size and offset-derived size.
+
+## P2 - Feature Roadmap
+
+- [ ] Implement `showHexDump`.
+  - Already exposed in render options, but not rendered yet.
+
+- [ ] Add `bitOrder: msb | lsb`.
+  - Current bitfield rendering assumes MSB-first display.
+
+- [ ] Add field tooltips/highlight behavior.
+  - Roadmap lists interactive tooltips and highlighting, but current SVG is static.
+
+- [ ] Add value display formatting.
+  - Support hex, decimal, binary, and maybe ASCII display where appropriate.
+
+- [ ] Add endianness indicators.
+  - `endianness` is accepted in config but not visibly represented in the SVG.
+
+## P3 - Missing Planned Modules
+
+- [ ] Add `binaryParser.ts`.
+  - Read binary data, extract field values, handle endianness, and generate hex dump data.
+
+- [ ] Add `templates.ts`.
+  - Provide predefined structures such as WAV, ELF, TCP, and PNG headers.
+
+- [ ] Add `comparison.ts`.
+  - Support side-by-side, overlay, and diff views.
+
+- [ ] Add `exporter.ts`.
+  - Export SVG, PNG, C code, and Markdown.
+
+- [ ] Add `cache.ts`.
+  - Hash-based render cache with TTL and future persistence path.
+
+## Documentation
+
+- [ ] Reconcile README, roadmap, and AGENTS instructions with actual repository state.
+  - Current docs mention modules and docs files that do not exist yet.
+
+- [ ] Add a user-facing `docs/` structure when the feature set stabilizes.
+  - Suggested first files:
+    - `docs/getting-started.md`
+    - `docs/syntax-reference.md`
+    - `docs/type-reference.md`
+    - `docs/troubleshooting.md`
+
+## Current Baseline
+
+- Core tests: passing, 141 tests.
+- Core coverage command:
+  - `npm run test --workspace=@bytegrid/core -- --coverage --runInBand`
+- Passing repo-level commands:
+  - `npm test`
+  - `npm run build`
+  - `npm run lint`
+  - `npm run format:check`
diff --git a/manifest.json b/manifest.json
index 1129c25..f74431d 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,7 +1,7 @@
 {
   "id": "bytegrid",
   "name": "ByteGrid",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "minAppVersion": "1.0.0",
   "description": "Visualize binary data and C struct memory layouts.",
   "author": "waaraawa",
diff --git a/package.json b/package.json
index 58a1f2b..a409885 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bytegrid",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "description": "Binary data and C struct memory layout visualization for Obsidian",
   "private": true,
   "workspaces": [
@@ -8,7 +8,7 @@
   ],
   "scripts": {
     "build": "npm run build --workspaces",
-    "test": "npm run test --workspaces",
+    "test": "npm run test --workspaces --if-present",
     "lint": "eslint . --ext .ts",
     "format": "prettier --write \"**/*.{ts,json,md}\"",
     "format:check": "prettier --check \"**/*.{ts,json,md}\"",
diff --git a/packages/core/package.json b/packages/core/package.json
index 65e73dc..3f1a7cb 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@bytegrid/core",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "description": "Core rendering logic for ByteGrid",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
diff --git a/packages/obsidian-plugin/esbuild.config.mjs b/packages/obsidian-plugin/esbuild.config.mjs
index d5cef13..09948ff 100644
--- a/packages/obsidian-plugin/esbuild.config.mjs
+++ b/packages/obsidian-plugin/esbuild.config.mjs
@@ -2,6 +2,7 @@ import esbuild from 'esbuild';
 import process from 'process';
 import builtins from 'builtin-modules';
 import fs from 'fs';
+import os from 'os';
 import path from 'path';
 
 const banner = `/*
@@ -11,7 +12,20 @@ if you want to view the source, please visit the github repository of this plugi
 `;
 
 const prod = process.argv[2] === 'production';
-const watch = process.argv[2] === '--watch';
+const watch = process.argv.includes('--watch');
+const deploy = process.argv.includes('--deploy');
+
+function expandHomePath(value) {
+  if (value === '~') {
+    return os.homedir();
+  }
+
+  if (value.startsWith('~/')) {
+    return path.join(os.homedir(), value.slice(2));
+  }
+
+  return value;
+}
 
 // Obsidian vault plugin directory
 let OBSIDIAN_PLUGIN_DIR = process.env.OBSIDIAN_PLUGIN_DIR;
@@ -25,6 +39,10 @@ try {
   // Ignore if .env doesn't exist
 }
 
+if (OBSIDIAN_PLUGIN_DIR) {
+  OBSIDIAN_PLUGIN_DIR = expandHomePath(OBSIDIAN_PLUGIN_DIR);
+}
+
 // Plugin to copy files to Obsidian after build
 const copyPlugin = {
   name: 'copy-to-obsidian',
@@ -92,7 +110,7 @@ const context = await esbuild.context({
   treeShaking: true,
   outfile: 'main.js',
   minify: prod,
-  plugins: [copyPlugin],
+  plugins: deploy ? [copyPlugin] : [],
 });
 
 if (watch) {
diff --git a/packages/obsidian-plugin/package.json b/packages/obsidian-plugin/package.json
index ebf1e72..06411c1 100644
--- a/packages/obsidian-plugin/package.json
+++ b/packages/obsidian-plugin/package.json
@@ -1,11 +1,12 @@
 {
   "name": "@bytegrid/obsidian-plugin",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "description": "ByteGrid Obsidian plugin",
   "main": "main.js",
   "scripts": {
     "build": "node esbuild.config.mjs",
-    "dev": "node esbuild.config.mjs --watch"
+    "dev": "node esbuild.config.mjs --watch --deploy",
+    "deploy:obsidian": "node esbuild.config.mjs --deploy"
   },
   "keywords": [
     "obsidian",
@@ -14,7 +15,7 @@
   "author": "ByteGrid Contributors",
   "license": "MIT",
   "dependencies": {
-    "@bytegrid/core": "^1.0.0"
+    "@bytegrid/core": "^1.0.1"
   },
   "devDependencies": {
     "@types/node": "^20.10.6",
diff --git a/packages/obsidian-plugin/src/main.ts b/packages/obsidian-plugin/src/main.ts
index 67014cc..9794b22 100644
--- a/packages/obsidian-plugin/src/main.ts
+++ b/packages/obsidian-plugin/src/main.ts
@@ -3,10 +3,10 @@ import { parse, validate, createLayout, renderSVG } from '@bytegrid/core';
 
 export default class ByteGridPlugin extends Plugin {
   onload(): void {
-    this.registerMarkdownCodeBlockProcessor('bytegrid', (source, el, ctx) => {
+    this.registerMarkdownCodeBlockProcessor('bytegrid', (source, el, _ctx) => {
       try {
         // Parse YAML input
-        const parsed = parseYaml(source);
+        const parsed = parseYaml(source) as unknown;
         const config = parse(parsed);
 
         // Validate configuration
@@ -25,7 +25,7 @@ export default class ByteGridPlugin extends Plugin {
             border: 'var(--background-modifier-border)',
             gridLine: 'var(--background-modifier-border)',
             gridLineSubtle: 'var(--background-modifier-border-hover)',
-            // For block cell text, using var(--text-normal) might lack contrast against colored blocks. 
+            // For block cell text, using var(--text-normal) might lack contrast against colored blocks.
             // We use a high-contrast fallback variable or default to white/black via CSS if available.
             // Obsidian's callouts use --callout-title-color which might be good, but for now we rely on standard text-muted.
             // Let's omit cellText overrides to fallback to textNormal/textMuted,
@@ -39,13 +39,13 @@ export default class ByteGridPlugin extends Plugin {
               mint: 'var(--color-green)', // No mint in standard Obsidian, fallback to green
               pink: 'var(--color-pink)',
               gray: 'var(--color-base-40)',
-            }
-          }
+            },
+          },
         });
 
         // Display SVG safely using DOMParser
-        const parser = new DOMParser();
-        const svgDoc = parser.parseFromString(svg, 'image/svg+xml');
+        const domParser = new DOMParser();
+        const svgDoc = domParser.parseFromString(svg, 'image/svg+xml');
         const svgElement = svgDoc.documentElement;
 
         if (svgElement.tagName === 'svg') {
@@ -55,10 +55,20 @@ export default class ByteGridPlugin extends Plugin {
         }
       } catch (error) {
         // Display error
-        const container = el.createDiv({ cls: 'bytegrid-error' });
-        container.createEl('h4', { text: 'Bytegrid error' });
-        container.createEl('p', { text: error instanceof Error ? error.message : String(error) });
-        container.createEl('pre', { text: source });
+        const container = document.createElement('div');
+        container.className = 'bytegrid-error';
+
+        const title = document.createElement('h4');
+        title.textContent = 'Bytegrid error';
+
+        const message = document.createElement('p');
+        message.textContent = error instanceof Error ? error.message : String(error);
+
+        const input = document.createElement('pre');
+        input.textContent = source;
+
+        container.append(title, message, input);
+        el.appendChild(container);
       }
     });
   }
diff --git a/packages/obsidian-plugin/versions.json b/packages/obsidian-plugin/versions.json
index 608a97a..85df038 100644
--- a/packages/obsidian-plugin/versions.json
+++ b/packages/obsidian-plugin/versions.json
@@ -1,3 +1,4 @@
 {
-  "1.0.0": "1.0.0"
+  "1.0.0": "1.0.0",
+  "1.0.1": "1.0.0"
 }
diff --git a/tsconfig.eslint.json b/tsconfig.eslint.json
new file mode 100644
index 0000000..912bc6e
--- /dev/null
+++ b/tsconfig.eslint.json
@@ -0,0 +1,10 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "lib": ["ES2020", "DOM"],
+    "noEmit": true,
+    "types": ["jest", "node"]
+  },
+  "include": ["packages/**/*.ts"],
+  "exclude": ["node_modules", "dist"]
+}