💾 Installation

Update system and install build tools

sudo apt update && sudo apt upgrade -y
sudo apt install curl iptables build-essential git wget jq make gcc nano tmux htop nvme-cli pkg-config libssl-dev libleveldb-dev tar clang bsdmainutils ncdu unzip libleveldb-dev -y

Install GO

sudo rm -rf /usr/local/go
curl -Ls https://go.dev/dl/go1.24.2.linux-amd64.tar.gz | sudo tar -xzf - -C /usr/local
eval $(echo 'export PATH=$PATH:/usr/local/go/bin' | sudo tee /etc/profile.d/golang.sh)
eval $(echo 'export PATH=$PATH:$HOME/go/bin' | tee -a $HOME/.profile)
echo "export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin" >> $HOME/.bash_profile
source $HOME/.bash_profile
go version

Download binary files

# Download Binary
cd $HOME
wget -O selfchaind https://github.com/hotcrosscom/Self-Chain-Releases/releases/download/mainnet-v2.0.0/selfchaind-linux-amd64
chmod +x selfchaind

# Prepare binaries for Cosmovisor
mkdir -p $HOME/.selfchain/cosmovisor/genesis/bin
mv $HOME/selfchaind $HOME/.selfchain/cosmovisor/genesis/bin/

# Create application symlinks
ln -s $HOME/.selfchain/cosmovisor/genesis $HOME/.selfchain/cosmovisor/current
sudo ln -s $HOME/.selfchain/cosmovisor/current/bin/selfchaind /usr/local/bin/selfchaind

We initialize the node to create the necessary configuration files

selfchaind init <YOUR_MONIKER_NAME> --chain-id self-1

Download Genesis

curl -Ls https://snapshots3.stakevillage.net/self-1/genesis.json > $HOME/.selfchain/config/genesis.json

At this stage, we can download the address book

curl -Ls https://snapshots3.stakevillage.net/self-1/addrbook.json > $HOME/.selfchain/config/addrbook.json

Set up node configuration

# Set node configuration
selfchaind config chain-id self-1
selfchaind config keyring-backend file

seed="55d3e1761d6752eeb72b8b86decbca0d56f6a885@174.138.120.234:26656,2f547f93392d7351c74a0d8cae1d44f172cf32e5@174.138.122.166:26656,8401cbf633c496e464a2d016b333f61ff34e9ee9@174.138.122.25:26656,[e-mail]:24356"
sed -i.bak -e "s/^seeds *=.*/seeds = \"$seed\"/" ~/.selfchain/config/config.toml

PEERS="55d3e1761d6752eeb72b8b86decbca0d56f6a885@174.138.120.234:26656,2f547f93392d7351c74a0d8cae1d44f172cf32e5@174.138.122.166:26656,8401cbf633c496e464a2d016b333f61ff34e9ee9@174.138.122.25:26656,3f6c17d793da169f30aa9b3f9df738313ea10b72@65.109.78.7:24356"
sed -i -e "s|^persistent_peers *=.*|persistent_peers = \"$PEERS\"|" $HOME/.selfchain/config/config.toml

# Set minimum gas price
sed -i -e "s|^minimum-gas-prices *=.*|minimum-gas-prices = \"0.005uslf\"|" $HOME/.selfchain/config/app.toml
# Set denom
sed -i  's/uatom/uslf/g' $HOME/.selfchain/config/app.toml

Set up pruning

pruning="custom"
pruning_keep_recent="1000"
pruning_keep_every="0"
pruning_interval="10"
sed -i -e "s/^pruning *=.*/pruning = \"$pruning\"/" $HOME/.selfchain/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.selfchain/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.selfchain/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.selfchain/config/app.toml

Set up indexer

indexer="null" &&
sed -i -e "s/^indexer *=.*/indexer = \"$indexer\"/" $HOME/.selfchain/config/config.toml

Create a service file

# Download and install Cosmovisor
go install cosmossdk.io/tools/cosmovisor/cmd/cosmovisor@v1.6.0

# Create service
sudo tee /etc/systemd/system/selfchaind.service > /dev/null << EOF
[Unit]
Description=Self Сhain - mainnet node service
After=network-online.target

[Service]
User=$USER
ExecStart=$(which cosmovisor) run start
Restart=on-failure
RestartSec=10
LimitNOFILE=65535
Environment="DAEMON_HOME=$HOME/.selfchain"
Environment="DAEMON_NAME=selfchaind"
Environment="UNSAFE_SKIP_BACKUP=true"
Environment="PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:$HOME/.selfchain/cosmovisor/current/bin"

[Install]
WantedBy=multi-user.target

sudo systemctl daemon-reload
sudo systemctl enable selfchaind
sudo systemctl start selfchaind && sudo journalctl -u selfchaind -f --no-hostname -o cat

IIf peers are not connected for a long time, then you need to use state synchronization or loading from a snapshot.