diff --git a/README-tech.md b/README-tech.md
index d4cf71e..1b55606 100644
--- a/README-tech.md
+++ b/README-tech.md
@@ -75,3 +75,100 @@ npm run lint:fix
 
 ## Localnet to Devnet
 
+### Switch to Devnet
+
+Change your Solana CLI to use the Devnet:
+
+```bash
+solana config set --url https://api.devnet.solana.com
+```
+
+### Fund Your Wallet
+
+Airdrop SOL to your Devnet wallet:
+
+```bash
+solana airdrop <amout>
+```
+
+### Update Anchor Configuration
+
+Modify your `Anchor.toml` file:
+
+Replace:
+```bash
+[provider]
+cluster = "localnet"
+```
+By:
+```bash
+[provider]
+cluster = "devnet"
+```
+
+Add :
+```bash
+[programs.devnet]
+nft_ticketing = "<your-program-id>"
+```
+
+### Environment Variables
+
+In  `/app/front/.env` (Next.js App):
+Replace:
+```bash
+NEXT_PUBLIC_REACT_APP_SOLANA_NETWORK="localnet"
+```
+By:
+```bash
+NEXT_PUBLIC_REACT_APP_SOLANA_NETWORK="devnet"
+```
+
+### Phantom Wallet
+
+In your Phantom settings, switch **Solana Localnet** to **Solana Devnet**.
+
+### Build and Deploy the Anchor Program
+
+Build:
+
+```bash
+anchor build
+```
+
+Deploy on the Devnet:
+
+```bash
+anchor deploy --provider.cluster devnet
+```
+### Update Program ID
+
+Automatically update the Program ID in the necessary files:
+
+```bash
+npm run update-program-id
+```
+
+// anchor build && anchor deploy ???
+
+### IDL Setup
+
+Copy the IDL (Interface Definition Language) file into the Next.js App:
+
+```bash
+npm run copy-idl
+```
+
+### Run Front-End (Next.js App)
+
+Go to the Next.js App Directory:
+
+```bash
+cd /<your-path>/anchor-nft-ticketing/app/front
+```
+
+Start the development server:
+
+```bash
+npm run dev
+```
diff --git a/README.md b/README.md
index 38f1969..171addd 100644
--- a/README.md
+++ b/README.md
@@ -120,10 +120,12 @@ Start the Solana local validator (solana-test-validator) with Metaplex:
 npm run ledger
 ```
 
-after starting the Solana local validator, you will probably need to do an airdrop(s):
+### Fund Your Wallet
+
+After starting the Solana local validator, you will probably need to airdrop SOL to your Localnet wallet:
 
 ```bash
-solana airdrop <amout> <your-address>
+solana airdrop <amout>
 ```
 
 ### Build and Deploy the Anchor Program
@@ -142,7 +144,7 @@ anchor deploy
 
 > **PS**: `anchor deploy` will create your `target/idl/nft_ticketing.json` file.
 
-### Change Program ID
+### Update Program ID
 
 Automatically update the Program ID in the necessary files:
 
diff --git a/sh/update-program-id.sh b/sh/update-program-id.sh
index d063769..2982129 100755
--- a/sh/update-program-id.sh
+++ b/sh/update-program-id.sh
@@ -11,7 +11,7 @@ for PROGRAM in "${PROGRAMS[@]}"; do
   PROGRAM_PATH=${PROGRAM//_/-}
 
   # Mise à jour de Anchor.toml pour chaque programme
-  sed -i "s/${PROGRAM} = \"[^\"]*\"/${PROGRAM} = \"$PROGRAM_ID\"/" Anchor.toml
+  sed -i "/^\[programs\./,/^\[/ s/^$PROGRAM = \"[^\"]*\"/$PROGRAM = \"$PROGRAM_ID\"/" Anchor.toml
 
   # Mise à jour de lib.rs pour chaque programme
   sed -i "s/declare_id!(\"[^\"]*\")/declare_id!(\"$PROGRAM_ID\")/" programs/${PROGRAM_PATH}/src/lib.rs