Gem Farm 💎

by Gemworks

Gem Farm is a collection of on-chain Solana programs for NFT ("gem" 💎) staking.

It consists of:

• Gem Bank 🏦 - responsible for storing NFTs, lets you configure which mints are/not allowed into the vaults
• Gem Farm 🧑‍🌾 - responsible for issuing rewards, lets you configure fixed/variable rates, lock up periods, fees, rarities & more

Gem Bank is used under the hood by Gem Farm.

Official deployment 🚀

Both programs are now officially deployed across all 3 networks (mainnet, devnet, testnet):

bank: 29j1S79rmS2tthGS6m8n6Cz94QNwuJ62HFmNDJjX6NfE
farm: BXdLcNcVbFHTfumox1qnz85YhVgw36t9CsQFtdQdTGLt

You can interact with them using this front-end (or build your own).

Deploy your own version 🛠

• git clone the repo
• Make sure you have solana-cli installed, keypair configured, and at least 10 sol on devnet beforehand
• Update path to your keypair in Anchor.toml that begins with wallet =
• Run anchor build to build the programs
• We need to update the program IDs:
  • Run solana-keygen pubkey ./target/deploy/gem_bank-keypair.json - insert the new Bank prog ID in the following locations:
    • ./Anchor.toml
    • ./programs/gem_bank/src/lib.rs
    • ./src/index.ts (replace GEM_BANK_PROG_ID)
  • And solana-keygen pubkey ./target/deploy/gem_farm-keypair.json - insert the new Farm prog ID in the following locations:
    • ./Anchor.toml
    • ./programs/gem_farm/src/lib.rs
    • ./src/index.ts (replace GEM_FARM_PROG_ID)
• Run anchor build to build one more time
• Run anchor deploy --provider.cluster devnet to deploy to devnet
• Now copy the IDLs into the apps:
  • cp ./target/idl/gem_bank.json ./app/gem-bank/public
  • cp ./target/idl/gem_bank.json ./app/gem-farm/public
  • cp ./target/idl/gem_farm.json ./app/gem-farm/public
• alternatively you can run the script I prepared ./scripts/cp_idl.sh
• (!) IMPORTANT - run yarn inside the root of the repo
• finally start the apps!
  • eg cd into app/gem-bank and run yarn && yarn serve
• don't forget to open Chrome's console with CMD+SHIFT+I to get feedback from the app when you click buttons. It currently doesn't have a notifications system

Note that deploying your own version will cost you ~20 SOL.

building a production ready site:

cd into app/gem-bank and build it

VUE_APP_MAINNET_URL=https://HOST/PATH/ yarn build

do the same thing for app/gem-farm

now deploy both app/gem-farm/dist and app/gem-bank/dist folders and set them as the ROOT_FOLDER in the nginx configuration below

nginx and tls:

install dependencies:

apt install nginx certbot python3-certbot-nginx

create default configuration, for example in /etc/nginx/sites-available/default (it might already exist, in this case, overwrite all the lines, unless you need them for some reason; if you do not have other sites on the same server, you're probably fine):

server {
    listen 80 default_server;
    listen [::]:80 default_server;
    
    listen 443 default_server;
    listen [::]:443 default_server;
    ssl_reject_handshake on;
    
    server_name _;
    return 444;
}

enable it:

ln -s /etc/nginx/sites-available/default /etc/nginx/sites-enabled/

create site configuration:

/etc/nginx/sites-available/DOMAIN

server {
    listen 80;
    listen [::]:80;
    
    root ROOT_FOLDER;
    index index.html index.htm index.nginx-debian.html;
    
    server_name DOMAIN WWW_DOMAIN_OPTIONAL;
    
    location / {
        try_files $uri $uri/ $uri.html /index.html;
    }
}

enable site:

ln -s /etc/nginx/sites-available/DOMAIN /etc/nginx/sites-enabled/

test configuration:

nginx -t

request let's encrypt certificate:

certbot --nginx -d DOMAIN

verify auto renewal:

systemctl status certbot.timer

simulate renewal:

certbot renew --dry-run

Debug cryptic errors ⚠️

If you get a cryptic error back that looks something like this:

Transaction failed 0x1798

The steps to take are as follows:

• translate the 0x number into decimal (eg using this) - eg 0x1798 becomes 6040
• if the number is 6XXX, this is a custom error from the app. Go to errors.rs found here and find the error numbered 40 (the remainder of the decimal)
• any other number besides 6XXX means an anchor error - go here to decipher it

Docs ✏️

Extensive documentation is available here.

The answer you're looking for is probably there. Pls don't DM with random questions.

License 🧾

MIT