Copy: pare product claims to what we can certify, cut rule-of-three cadence, record arch 10 §10

src/landing/Landing.tsx

@@ -369,8 +369,7 @@ export function Landing(): ReactNode {
           </h1>
           <p>
             Astrolabe is a local studio for Vega-Lite. Write a spec by hand or build one by
-            clicking, give it a theme, and keep all your charts in one library — in the browser,
-            with no account and no server.
+            clicking, give it a theme, and keep all your charts in one searchable library.
           </p>
           <div className={styles.heroCta}>
             <a className={`${styles.btn} ${styles.btnPrimary}`} href="/app/">
@@ -399,8 +398,8 @@ export function Landing(): ReactNode {
             </h2>
             <p className={styles.capP}>
               The editor is Monaco with the Vega-Lite schema loaded, so you get validation,
-              autocompletion, and inline docs without going online. Each chart keeps a draft and a
-              published version: edit the draft, publish when it's ready, revert when it isn't.
+              autocompletion, and inline docs without going online. Each chart keeps an editable
+              draft alongside a published version you can revert to.
             </p>
             <p className={styles.capP}>
               If you'd rather not start from JSON, the builder works from the kind of chart you
@@ -426,7 +425,7 @@ export function Landing(): ReactNode {
           <div className={styles.capText}>
             <div className={styles.capEyebrow}>One library</div>
             <h2 className={styles.capH}>
-              Every chart you make <b>stays</b>, with the data behind it.
+              Every chart you make is <b>saved</b>, with the data behind it.
             </h2>
             <p className={styles.capP}>
               Store a dataset once and reference it by name from as many charts as you want. Rename
@@ -434,8 +433,8 @@ export function Landing(): ReactNode {
             </p>
             <p className={styles.capP}>
               Load data by pasting CSV or JSON, or by fetching a URL. You can also lift inline data
-              out of a spec into a shared dataset. Search, sort, and duplicate as the collection
-              grows.
+              out of a spec into a shared dataset. Search and sort as the collection grows, and
+              duplicate a snippet to start a variant.
             </p>
           </div>
           <div className={styles.shot}>
@@ -599,17 +598,16 @@ export function Landing(): ReactNode {
             Your charts are <b>yours.</b>
           </h2>
           <p className={styles.creedLede}>
-            Astrolabe runs in your browser and stores everything locally — no account, no server.
-            What it produces is ordinary Vega-Lite JSON, so you can read it, edit it in other tools,
-            or keep it long after you've stopped using Astrolabe.
+            Astrolabe runs in your browser, and what it makes is ordinary Vega-Lite JSON — read it,
+            edit it in other tools, or take it elsewhere whenever you want.
           </p>
           <div className={styles.creedGrid}>
             <div>
               <span className={styles.creedKey}>private</span>
-              <h3>Stays on your machine</h3>
+              <h3>Local to your browser</h3>
               <p>
-                Charts, data, and themes are saved in your browser. Install it and it works with no
-                connection.
+                Charts, data, and themes are saved in this browser, and it keeps working offline
+                once installed.
               </p>
             </div>
             <div>
@@ -624,8 +622,8 @@ export function Landing(): ReactNode {
               <span className={styles.creedKey}>yours</span>
               <h3>Set up your way</h3>
               <p>
-                Two ways to author, your own fonts and themes, your own library. Arrange it to match
-                how you work.
+                Author by hand or by clicking, with your own fonts and themes. Arrange the library
+                to match how you work.
               </p>
             </div>
           </div>