diff --git a/.yarn/releases/yarn-1.22.15.cjs b/.yarn/releases/yarn-1.22.15.cjs
index e520b2dc986..9d72e21141b 100755
--- a/.yarn/releases/yarn-1.22.15.cjs
+++ b/.yarn/releases/yarn-1.22.15.cjs
@@ -1,4 +1,7 @@
 #!/usr/bin/env node
+if (process.env.CXXFLAGS === undefined) {
+  process.env.CXXFLAGS = '-std=c++14';
+}
 module.exports =
 /******/ (function(modules) { // webpackBootstrap
 /******/ 	// The module cache
@@ -147519,4 +147522,4 @@ module.exports = require("dns");
 module.exports = require("domain");
 
 /***/ })
-/******/ ]);
\ No newline at end of file
+/******/ ]);
diff --git a/MAINTAINERS.md b/MAINTAINERS.md
index 5d71fd8196f..a27bc954161 100644
--- a/MAINTAINERS.md
+++ b/MAINTAINERS.md
@@ -30,7 +30,8 @@ Once tests pass, you can publish to NPM with the following:
 
 ```sh
 # Publish to NPM. NOTE: You may have to repeat this several times if there are failures.
-yarn lerna publish from-package
+# Specify the --dist-tag if you're publishing a new beta release.
+yarn lerna publish from-package # --dist-tag=beta
 ```
 
 Merge the release PR into master.  DO NOT REBASE OR SQUASH OR YOU WILL LOSE
diff --git a/docs/env.md b/docs/env.md
index 621b39bb49e..6f4f4350218 100644
--- a/docs/env.md
+++ b/docs/env.md
@@ -34,6 +34,17 @@ declarations.
 Lifetime: until all sources (including dapps) conform to using `Far`
 declarations for all remote objects
 
+## CXXFLAGS
+
+Affects: yarn, agoric install
+
+Purpose: add compilation flags to Node.js C++ addons
+
+Description: defaults to `-std=c++14` if not set (empty string doesn't default)
+
+Lifetime: probably forever (until all supported Node versions work with
+`CXXFLAGS=''`)
+
 ## DEBUG
 
 Affects: agoric (CLI), ag-chain-cosmos, ag-solo
diff --git a/packages/agoric-cli/src/install.js b/packages/agoric-cli/src/install.js
index aa25ead7872..610540f87aa 100644
--- a/packages/agoric-cli/src/install.js
+++ b/packages/agoric-cli/src/install.js
@@ -10,9 +10,16 @@ export default async function installMain(progname, rawArgs, powers, opts) {
   const { anylogger, fs, spawn } = powers;
   const log = anylogger('agoric:install');
 
+  const forceSdkVersion = rawArgs[1];
+
   // Notify the preinstall guard that we are running.
   process.env.AGORIC_INSTALL = 'true';
 
+  // Node 16 requires this to be set for C++ addons to compile.
+  if (process.env.CXXFLAGS === undefined) {
+    process.env.CXXFLAGS = '-std=c++14';
+  }
+
   const pspawn = makePspawn({ log, spawn, chalk });
 
   const rimraf = file => pspawn('rm', ['-rf', file]);
@@ -33,13 +40,15 @@ export default async function installMain(progname, rawArgs, powers, opts) {
   }
 
   let subdirs;
+  let sdkWorktree;
   const dappPackageJSON = await fs
     .readFile(`package.json`, 'utf-8')
     .then(data => JSON.parse(data))
     .catch(err => log('error reading', `package.json`, err));
   if (dappPackageJSON.useWorkspaces) {
-    subdirs = await workspaceDirectories();
-    subdirs.unshift('.');
+    const workdirs = await workspaceDirectories();
+    sdkWorktree = workdirs.find(subd => subd === 'agoric-sdk');
+    subdirs = ['.', ...workdirs.filter(subd => subd !== 'agoric-sdk')];
   } else {
     const existingSubdirs = await Promise.all(
       ['.', '_agstate/agoric-servers', 'contract', 'api', 'ui']
@@ -91,6 +100,12 @@ export default async function installMain(progname, rawArgs, powers, opts) {
       }),
     );
 
+    // Link the SDK.
+    if (sdkWorktree) {
+      await fs.unlink(sdkWorktree).catch(_ => {});
+      await fs.symlink(sdkRoot, sdkWorktree);
+    }
+
     await Promise.all(
       subdirs.map(async subdir => {
         const nm = `${subdir}/node_modules`;
@@ -106,7 +121,12 @@ export default async function installMain(progname, rawArgs, powers, opts) {
           ),
         );
 
-        // Mark all the SDK package dependencies as wildcards.
+        if (forceSdkVersion === undefined) {
+          // No need to change package.json.
+          return;
+        }
+
+        // Modify all the SDK package versions.
         const pjson = `${subdir}/package.json`;
         const packageJSON = await fs
           .readFile(pjson, 'utf-8')
@@ -120,7 +140,7 @@ export default async function installMain(progname, rawArgs, powers, opts) {
           if (deps) {
             for (const pkg of Object.keys(deps)) {
               if (versions.has(pkg)) {
-                deps[pkg] = `*`;
+                deps[pkg] = forceSdkVersion;
               }
             }
           }
@@ -151,6 +171,10 @@ export default async function installMain(progname, rawArgs, powers, opts) {
     return 1;
   }
 
+  if (sdkWorktree) {
+    return 0;
+  }
+
   if (opts.sdk) {
     await Promise.all(
       dirPackages.map(async ([dir, pjName]) => {
diff --git a/packages/agoric-cli/src/main.js b/packages/agoric-cli/src/main.js
index 2b7b975a940..df92019ff58 100644
--- a/packages/agoric-cli/src/main.js
+++ b/packages/agoric-cli/src/main.js
@@ -156,12 +156,12 @@ const main = async (progname, rawArgs, powers) => {
     });
 
   program
-    .command('install')
+    .command('install [force-sdk-version]')
     .description('install Dapp dependencies')
-    .action(async cmd => {
+    .action(async (forceSdkVersion, cmd) => {
       await isNotBasedir();
       const opts = { ...program.opts(), ...cmd.opts() };
-      return subMain(installMain, ['install'], opts);
+      return subMain(installMain, ['install', forceSdkVersion], opts);
     });
 
   program
diff --git a/packages/dapp-svelte-wallet/api/package.json b/packages/dapp-svelte-wallet/api/package.json
index 6f1ac879148..af60ea9e0c3 100644
--- a/packages/dapp-svelte-wallet/api/package.json
+++ b/packages/dapp-svelte-wallet/api/package.json
@@ -57,5 +57,8 @@
       "test/**/test-*.js"
     ],
     "timeout": "2m"
+  },
+  "publishConfig": {
+    "access": "public"
   }
 }