diff --git a/tokens/create-token/anchor/prepare.mjs b/tokens/create-token/anchor/prepare.mjs
index 357a1a645..911d7e3b3 100644
--- a/tokens/create-token/anchor/prepare.mjs
+++ b/tokens/create-token/anchor/prepare.mjs
@@ -18,12 +18,12 @@ try {
     for (const program of programs) {
         const { id, name } = program;
         const outputFile = join(outputDir, name);
-        await $`solana config set -um`;
-
         try {
             await mkdir(outputDir, { recursive: true });
             if (overwrite) await rm(outputFile, { force: true });
-            await $`solana program dump ${id} ${outputFile}`;
+            // `-um` targets mainnet for this command only, leaving the developer's
+            // global Solana CLI config alone.
+            await $`solana program dump -um ${id} ${outputFile}`;
             console.log(`Program ${id} dumped to ${outputFile}`);
         } catch (error) {
             console.error(`Error dumping ${id}: ${error.message}`);
diff --git a/tokens/create-token/native/prepare.mjs b/tokens/create-token/native/prepare.mjs
index 357a1a645..911d7e3b3 100644
--- a/tokens/create-token/native/prepare.mjs
+++ b/tokens/create-token/native/prepare.mjs
@@ -18,12 +18,12 @@ try {
     for (const program of programs) {
         const { id, name } = program;
         const outputFile = join(outputDir, name);
-        await $`solana config set -um`;
-
         try {
             await mkdir(outputDir, { recursive: true });
             if (overwrite) await rm(outputFile, { force: true });
-            await $`solana program dump ${id} ${outputFile}`;
+            // `-um` targets mainnet for this command only, leaving the developer's
+            // global Solana CLI config alone.
+            await $`solana program dump -um ${id} ${outputFile}`;
             console.log(`Program ${id} dumped to ${outputFile}`);
         } catch (error) {
             console.error(`Error dumping ${id}: ${error.message}`);
diff --git a/tokens/nft-operations/anchor/prepare.mjs b/tokens/nft-operations/anchor/prepare.mjs
index 357a1a645..911d7e3b3 100644
--- a/tokens/nft-operations/anchor/prepare.mjs
+++ b/tokens/nft-operations/anchor/prepare.mjs
@@ -18,12 +18,12 @@ try {
     for (const program of programs) {
         const { id, name } = program;
         const outputFile = join(outputDir, name);
-        await $`solana config set -um`;
-
         try {
             await mkdir(outputDir, { recursive: true });
             if (overwrite) await rm(outputFile, { force: true });
-            await $`solana program dump ${id} ${outputFile}`;
+            // `-um` targets mainnet for this command only, leaving the developer's
+            // global Solana CLI config alone.
+            await $`solana program dump -um ${id} ${outputFile}`;
             console.log(`Program ${id} dumped to ${outputFile}`);
         } catch (error) {
             console.error(`Error dumping ${id}: ${error.message}`);
diff --git a/tokens/nft-operations/pinocchio/prepare.mjs b/tokens/nft-operations/pinocchio/prepare.mjs
index 4a4388dd2..04bc2554a 100644
--- a/tokens/nft-operations/pinocchio/prepare.mjs
+++ b/tokens/nft-operations/pinocchio/prepare.mjs
@@ -21,13 +21,13 @@ const outputDir = 'tests/fixtures';
 
 try {
     mkdirSync(outputDir, { recursive: true });
-    // Point the Solana CLI at mainnet, where the canonical program lives.
-    execSync('solana config set -um', { stdio: 'inherit' });
 
     for (const { id, name } of programs) {
         const outputFile = join(outputDir, name);
         rmSync(outputFile, { force: true });
-        execSync(`solana program dump ${id} ${outputFile}`, { stdio: 'inherit' });
+        // `-um` points this one command at mainnet, where the canonical program
+        // lives, without touching the developer's global Solana CLI config.
+        execSync(`solana program dump -um ${id} ${outputFile}`, { stdio: 'inherit' });
         console.log(`Dumped ${id} -> ${outputFile}`);
     }
 } catch (error) {
diff --git a/tokens/pda-mint-authority/anchor/prepare.mjs b/tokens/pda-mint-authority/anchor/prepare.mjs
index 357a1a645..911d7e3b3 100644
--- a/tokens/pda-mint-authority/anchor/prepare.mjs
+++ b/tokens/pda-mint-authority/anchor/prepare.mjs
@@ -18,12 +18,12 @@ try {
     for (const program of programs) {
         const { id, name } = program;
         const outputFile = join(outputDir, name);
-        await $`solana config set -um`;
-
         try {
             await mkdir(outputDir, { recursive: true });
             if (overwrite) await rm(outputFile, { force: true });
-            await $`solana program dump ${id} ${outputFile}`;
+            // `-um` targets mainnet for this command only, leaving the developer's
+            // global Solana CLI config alone.
+            await $`solana program dump -um ${id} ${outputFile}`;
             console.log(`Program ${id} dumped to ${outputFile}`);
         } catch (error) {
             console.error(`Error dumping ${id}: ${error.message}`);
diff --git a/tokens/pda-mint-authority/native/prepare.mjs b/tokens/pda-mint-authority/native/prepare.mjs
index 357a1a645..911d7e3b3 100644
--- a/tokens/pda-mint-authority/native/prepare.mjs
+++ b/tokens/pda-mint-authority/native/prepare.mjs
@@ -18,12 +18,12 @@ try {
     for (const program of programs) {
         const { id, name } = program;
         const outputFile = join(outputDir, name);
-        await $`solana config set -um`;
-
         try {
             await mkdir(outputDir, { recursive: true });
             if (overwrite) await rm(outputFile, { force: true });
-            await $`solana program dump ${id} ${outputFile}`;
+            // `-um` targets mainnet for this command only, leaving the developer's
+            // global Solana CLI config alone.
+            await $`solana program dump -um ${id} ${outputFile}`;
             console.log(`Program ${id} dumped to ${outputFile}`);
         } catch (error) {
             console.error(`Error dumping ${id}: ${error.message}`);
diff --git a/tokens/transfer-tokens/anchor/prepare.mjs b/tokens/transfer-tokens/anchor/prepare.mjs
index 357a1a645..911d7e3b3 100644
--- a/tokens/transfer-tokens/anchor/prepare.mjs
+++ b/tokens/transfer-tokens/anchor/prepare.mjs
@@ -18,12 +18,12 @@ try {
     for (const program of programs) {
         const { id, name } = program;
         const outputFile = join(outputDir, name);
-        await $`solana config set -um`;
-
         try {
             await mkdir(outputDir, { recursive: true });
             if (overwrite) await rm(outputFile, { force: true });
-            await $`solana program dump ${id} ${outputFile}`;
+            // `-um` targets mainnet for this command only, leaving the developer's
+            // global Solana CLI config alone.
+            await $`solana program dump -um ${id} ${outputFile}`;
             console.log(`Program ${id} dumped to ${outputFile}`);
         } catch (error) {
             console.error(`Error dumping ${id}: ${error.message}`);
diff --git a/tokens/transfer-tokens/native/prepare.mjs b/tokens/transfer-tokens/native/prepare.mjs
index 357a1a645..911d7e3b3 100644
--- a/tokens/transfer-tokens/native/prepare.mjs
+++ b/tokens/transfer-tokens/native/prepare.mjs
@@ -18,12 +18,12 @@ try {
     for (const program of programs) {
         const { id, name } = program;
         const outputFile = join(outputDir, name);
-        await $`solana config set -um`;
-
         try {
             await mkdir(outputDir, { recursive: true });
             if (overwrite) await rm(outputFile, { force: true });
-            await $`solana program dump ${id} ${outputFile}`;
+            // `-um` targets mainnet for this command only, leaving the developer's
+            // global Solana CLI config alone.
+            await $`solana program dump -um ${id} ${outputFile}`;
             console.log(`Program ${id} dumped to ${outputFile}`);
         } catch (error) {
             console.error(`Error dumping ${id}: ${error.message}`);