diff --git a/packages/safe-chain/src/shell-integration/supported-shells/bash.js b/packages/safe-chain/src/shell-integration/supported-shells/bash.js
index 3491bc7..ff2266b 100644
--- a/packages/safe-chain/src/shell-integration/supported-shells/bash.js
+++ b/packages/safe-chain/src/shell-integration/supported-shells/bash.js
@@ -141,9 +141,10 @@ function cygpathw(path) {
   }
 }
 
-function getManualTeardownInstructions() {
+/** @param {string} preamble */
+function buildManualInstructions(preamble) {
   const customDir = getSafeChainDir();
-  const instructions = [`Remove the following line from your ~/.bashrc file:`];
+  const instructions = [preamble];
 
   if (customDir) {
     instructions.push(
@@ -158,21 +159,12 @@ function getManualTeardownInstructions() {
   return instructions;
 }
 
+function getManualTeardownInstructions() {
+  return buildManualInstructions(`Remove the following line from your ~/.bashrc file:`);
+}
+
 function getManualSetupInstructions() {
-  const customDir = getSafeChainDir();
-  const instructions = [`Add the following line to your ~/.bashrc file:`];
-
-  if (customDir) {
-    instructions.push(
-      `  export SAFE_CHAIN_DIR="${customDir}"`,
-      `  source ${path.join(getScriptsDir(), "init-posix.sh")}`,
-    );
-  } else {
-    instructions.push(`  source ~/.safe-chain/scripts/init-posix.sh`);
-  }
-
-  instructions.push(`Then restart your terminal or run: source ~/.bashrc`);
-  return instructions;
+  return buildManualInstructions(`Add the following line to your ~/.bashrc file:`);
 }
 
 /**
diff --git a/packages/safe-chain/src/shell-integration/supported-shells/fish.js b/packages/safe-chain/src/shell-integration/supported-shells/fish.js
index 33aa48c..a6ffe1e 100644
--- a/packages/safe-chain/src/shell-integration/supported-shells/fish.js
+++ b/packages/safe-chain/src/shell-integration/supported-shells/fish.js
@@ -84,11 +84,10 @@ function getStartupFile() {
   }
 }
 
-function getManualTeardownInstructions() {
+/** @param {string} preamble */
+function buildManualInstructions(preamble) {
   const customDir = getSafeChainDir();
-  const instructions = [
-    `Remove the following line from your ~/.config/fish/config.fish file:`,
-  ];
+  const instructions = [preamble];
 
   if (customDir) {
     instructions.push(
@@ -105,25 +104,12 @@ function getManualTeardownInstructions() {
   return instructions;
 }
 
+function getManualTeardownInstructions() {
+  return buildManualInstructions(`Remove the following line from your ~/.config/fish/config.fish file:`);
+}
+
 function getManualSetupInstructions() {
-  const customDir = getSafeChainDir();
-  const instructions = [
-    `Add the following line to your ~/.config/fish/config.fish file:`,
-  ];
-
-  if (customDir) {
-    instructions.push(
-      `  set -gx SAFE_CHAIN_DIR "${customDir}"`,
-      `  source ${path.join(getScriptsDir(), "init-fish.fish")}`,
-    );
-  } else {
-    instructions.push(`  source ~/.safe-chain/scripts/init-fish.fish`);
-  }
-
-  instructions.push(
-    `Then restart your terminal or run: source ~/.config/fish/config.fish`,
-  );
-  return instructions;
+  return buildManualInstructions(`Add the following line to your ~/.config/fish/config.fish file:`);
 }
 
 /**
diff --git a/packages/safe-chain/src/shell-integration/supported-shells/powershell.js b/packages/safe-chain/src/shell-integration/supported-shells/powershell.js
index 44fbfe9..906bedd 100644
--- a/packages/safe-chain/src/shell-integration/supported-shells/powershell.js
+++ b/packages/safe-chain/src/shell-integration/supported-shells/powershell.js
@@ -87,11 +87,10 @@ function getStartupFile() {
   }
 }
 
-function getManualTeardownInstructions() {
+/** @param {string} preamble */
+function buildManualInstructions(preamble) {
   const customDir = getSafeChainDir();
-  const instructions = [
-    `Remove the following line from your PowerShell profile (run "echo $PROFILE" to find its location):`,
-  ];
+  const instructions = [preamble];
 
   if (customDir) {
     instructions.push(
@@ -106,23 +105,12 @@ function getManualTeardownInstructions() {
   return instructions;
 }
 
+function getManualTeardownInstructions() {
+  return buildManualInstructions(`Remove the following line from your PowerShell profile (run "echo $PROFILE" to find its location):`);
+}
+
 function getManualSetupInstructions() {
-  const customDir = getSafeChainDir();
-  const instructions = [
-    `Add the following line to your PowerShell profile (run "echo $PROFILE" to find its location):`,
-  ];
-
-  if (customDir) {
-    instructions.push(
-      `  $env:SAFE_CHAIN_DIR = '${customDir}'`,
-      `  . "${path.join(getScriptsDir(), "init-pwsh.ps1")}"`,
-    );
-  } else {
-    instructions.push(`  . "$HOME\\.safe-chain\\scripts\\init-pwsh.ps1"`);
-  }
-
-  instructions.push(`Then restart your terminal or run: . $PROFILE`);
-  return instructions;
+  return buildManualInstructions(`Add the following line to your PowerShell profile (run "echo $PROFILE" to find its location):`);
 }
 
 /**
diff --git a/packages/safe-chain/src/shell-integration/supported-shells/windowsPowershell.js b/packages/safe-chain/src/shell-integration/supported-shells/windowsPowershell.js
index 041cca7..e53891e 100644
--- a/packages/safe-chain/src/shell-integration/supported-shells/windowsPowershell.js
+++ b/packages/safe-chain/src/shell-integration/supported-shells/windowsPowershell.js
@@ -87,11 +87,10 @@ function getStartupFile() {
   }
 }
 
-function getManualTeardownInstructions() {
+/** @param {string} preamble */
+function buildManualInstructions(preamble) {
   const customDir = getSafeChainDir();
-  const instructions = [
-    `Remove the following line from your PowerShell profile (run "echo $PROFILE" to find its location):`,
-  ];
+  const instructions = [preamble];
 
   if (customDir) {
     instructions.push(
@@ -106,23 +105,12 @@ function getManualTeardownInstructions() {
   return instructions;
 }
 
+function getManualTeardownInstructions() {
+  return buildManualInstructions(`Remove the following line from your PowerShell profile (run "echo $PROFILE" to find its location):`);
+}
+
 function getManualSetupInstructions() {
-  const customDir = getSafeChainDir();
-  const instructions = [
-    `Add the following line to your PowerShell profile (run "echo $PROFILE" to find its location):`,
-  ];
-
-  if (customDir) {
-    instructions.push(
-      `  $env:SAFE_CHAIN_DIR = '${customDir}'`,
-      `  . "${path.join(getScriptsDir(), "init-pwsh.ps1")}"`,
-    );
-  } else {
-    instructions.push(`  . "$HOME\\.safe-chain\\scripts\\init-pwsh.ps1"`);
-  }
-
-  instructions.push(`Then restart your terminal or run: . $PROFILE`);
-  return instructions;
+  return buildManualInstructions(`Add the following line to your PowerShell profile (run "echo $PROFILE" to find its location):`);
 }
 
 /**
diff --git a/packages/safe-chain/src/shell-integration/supported-shells/zsh.js b/packages/safe-chain/src/shell-integration/supported-shells/zsh.js
index c9be67f..9b87d86 100644
--- a/packages/safe-chain/src/shell-integration/supported-shells/zsh.js
+++ b/packages/safe-chain/src/shell-integration/supported-shells/zsh.js
@@ -84,9 +84,10 @@ function getStartupFile() {
   }
 }
 
-function getManualTeardownInstructions() {
+/** @param {string} preamble */
+function buildManualInstructions(preamble) {
   const customDir = getSafeChainDir();
-  const instructions = [`Remove the following line from your ~/.zshrc file:`];
+  const instructions = [preamble];
 
   if (customDir) {
     instructions.push(
@@ -101,21 +102,12 @@ function getManualTeardownInstructions() {
   return instructions;
 }
 
+function getManualTeardownInstructions() {
+  return buildManualInstructions(`Remove the following line from your ~/.zshrc file:`);
+}
+
 function getManualSetupInstructions() {
-  const customDir = getSafeChainDir();
-  const instructions = [`Add the following line to your ~/.zshrc file:`];
-
-  if (customDir) {
-    instructions.push(
-      `  export SAFE_CHAIN_DIR="${customDir}"`,
-      `  source ${path.join(getScriptsDir(), "init-posix.sh")}`,
-    );
-  } else {
-    instructions.push(`  source ~/.safe-chain/scripts/init-posix.sh`);
-  }
-
-  instructions.push(`Then restart your terminal or run: source ~/.zshrc`);
-  return instructions;
+  return buildManualInstructions(`Add the following line to your ~/.zshrc file:`);
 }
 
 export default {