diff --git a/docs/install.md b/docs/install.md
index 32c84371..4b6d0d77 100644
--- a/docs/install.md
+++ b/docs/install.md
@@ -19,8 +19,7 @@ Node.js v10+ on the most common platforms:
 
 * macOS x64 (>= 10.13)
 * Linux x64 (glibc >= 2.17, musl >= 1.1.24)
-* Linux ARM64 (glibc >= 2.29)
-* Linux ARM64 (musl >= 1.1.24)
+* Linux ARM64 (glibc >= 2.29, musl >= 1.1.24)
 * Windows x64
 * Windows x86
 
@@ -61,21 +60,15 @@ Check the output of running `npm install --verbose sharp` for useful error messa
 
 ## Apple M1
 
-If you are using ARM64 Node.js, which can be checked using:
+Prebuilt libvips binaries are provided for macOS on ARM64 (since sharp v0.28.0).
 
-```sh
-node -p "process.arch === 'arm64'"
-```
-
-then libvips must currently be installed via Homebrew before installing sharp.
-
-```sh
-brew install vips
-```
+During `npm install` sharp will be built locally,
+which requires Xcode and Python - see
+[building from source](#building-from-source).
 
 When this new ARM64 CPU is made freely available
 to open source projects via a CI service
-then prebuilt binaries can be provided.
+then prebuilt sharp binaries can also be provided.
 
 ## Custom libvips
 
@@ -220,22 +213,6 @@ until after all threads are complete.
 
 ## Known conflicts
 
-### Electron and Linux
-
-The prebuilt binaries provided by Electron for Linux depend on many shared system libraries.
-
-One of these, `libgobject-2.0.so`,
-is known to conflict with the statically-linked binaries provided by sharp
-and the following error can occur:
-```
-basic_string::_S_construct null not valid
-```
-
-To workaround this, set the `LD_PRELOAD` environment variable before the `electron` binary is run.
-```sh
-LD_PRELOAD=node_modules/sharp/vendor/8.10.5/lib/libvips.so.42 electron script.js
-```
-
 ### Canvas and Windows
 
 The prebuilt binaries provided by `canvas` for Windows depend on the unmaintained GTK 2, last updated in 2011.
diff --git a/lib/constructor.js b/lib/constructor.js
index 54f2c878..dcd5be2e 100644
--- a/lib/constructor.js
+++ b/lib/constructor.js
@@ -18,12 +18,10 @@ try {
     help.push(`- Ensure "${process.platform}" is used at install time as well as runtime`);
   } else if (/dylib/.test(err.message) && /Incompatible library version/.test(err.message)) {
     help.push('- Run "brew update && brew upgrade vips"');
-  } else if (/Cannot find module/.test(err.message)) {
-    help.push('- Run "npm rebuild --verbose sharp" and look for errors');
   } else {
     help.push(
       '- Remove the "node_modules/sharp" directory then run',
-      '  "npm install --ignore-scripts=false --verbose" and look for errors'
+      '  "npm install --ignore-scripts=false --verbose sharp" and look for errors'
     );
   }
   help.push(
diff --git a/package.json b/package.json
index eacdf93c..2e0eba27 100644
--- a/package.json
+++ b/package.json
@@ -134,7 +134,7 @@
     "exif-reader": "^1.0.3",
     "icc": "^2.0.0",
     "license-checker": "^25.0.1",
-    "mocha": "^8.3.0",
+    "mocha": "^8.3.1",
     "mock-fs": "^4.13.0",
     "nyc": "^15.1.0",
     "prebuild": "^10.0.1",