Setup

Check out Chain - Info.

Network	Chain	Version
Testnet	tacchain_2391-1	v0.0.10

Check out Hardware - Prerequisites.

Node Type	RAM	NVMe Storage	Cores	Bandwidth
Validator	8 GB	200 GB*	4+	100 mbps

Guide Add Date : 30.05.2025 - dd.mm.year

Update

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sudo apt update && sudo apt upgrade -y
sudo apt install curl git wget htop tmux build-essential jq make lz4 gcc unzip -y

Port ;

We used 59 - if you want you can change the 59

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echo "export TAC_PORT="59"" >> $HOME/.bash_profile
source $HOME/.bash_profile

Go Installation

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ver="1.22.5"
wget "https://golang.org/dl/go$ver.linux-amd64.tar.gz"
sudo rm -rf /usr/local/go
sudo tar -C /usr/local -xzf "go$ver.linux-amd64.tar.gz"
rm "go$ver.linux-amd64.tar.gz"
echo "export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin" >> ~/.bash_profile
source ~/.bash_profile
go version

Binary ;

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cd $HOME
rm -rf $HOME/tacchain
git clone https://github.com/TacBuild/tacchain.git
cd tacchain
git checkout v0.0.10
make build

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mkdir -p $HOME/.tacchaind/cosmovisor/genesis/bin
cp build/tacchaind $HOME/.tacchaind/cosmovisor/genesis/bin/

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mkdir -p $HOME/.tacchaind/cosmovisor/upgrades/v0.0.10/bin
mv build/tacchaind $HOME/.tacchaind/cosmovisor/upgrades/v0.0.10/bin/tacchaind

Sudo Ln :

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sudo ln -s $HOME/.tacchaind/cosmovisor/genesis $HOME/.tacchaind/cosmovisor/current -f
sudo ln -s $HOME/.tacchaind/cosmovisor/current/bin/tacchaind /usr/local/bin/tacchaind -f

Cosmovisor :

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go install cosmossdk.io/tools/cosmovisor/cmd/cosmovisor@v1.5.0

Service :

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sudo tee /etc/systemd/system/tacchaind.service > /dev/null << EOF
[Unit]
Description=tacchaind node service
After=network-online.target

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

[Install]
WantedBy=multi-user.target
EOF
sudo systemctl daemon-reload
sudo systemctl enable tacchaind.service

Init - Chain ID ;

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tacchaind init moniker --chain-id tacchain_2391-1

Genesis ;

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curl -Ls https://raw.githubusercontent.com/TacBuild/tacchain/refs/heads/main/networks/tacchain_2391-1/genesis.json > $HOME/.tacchaind/config/genesis.json

Seed / Gas / Pruning ;

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SEEDS=""
PEERS="9c32b3b959a2427bd2aa064f8c9a8efebdad4c23@206.217.210.164:45130,04a2152eed9f73dc44779387a870ea6480c41fe7@206.217.210.164:45140,5aaaf8140262d7416ac53abe4e0bd13b0f582168@23.92.177.41:45110,ddb3e8b8f4d051e914686302dafc2a73adf9b0d2@23.92.177.41:45120"
sed -i -e "/^\[p2p\]/,/^\[/{s/^[[:space:]]*seeds *=.*/seeds = \"$SEEDS\"/}" \
       -e "/^\[p2p\]/,/^\[/{s/^[[:space:]]*persistent_peers *=.*/persistent_peers = \"$PEERS\"/}" $HOME/.tacchaind/config/config.toml


sed -i \
  -e 's|^pruning *=.*|pruning = "custom"|' \
  -e 's|^pruning-keep-recent *=.*|pruning-keep-recent = "100"|' \
  -e 's|^pruning-keep-every *=.*|pruning-keep-every = "0"|' \
  -e 's|^pruning-interval *=.*|pruning-interval = "19"|' \
  $HOME/.tacchaind/config/app.toml


sudo sed -i 's/timeout_commit = "5s"/timeout_commit = "2s"/' /root/.tacchaind/config/config.toml

Port ;

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sed -i.bak -e "s%:1317%:${TAC_PORT}317%g;
s%:8080%:${TAC_PORT}080%g;
s%:9090%:${TAC_PORT}090%g;
s%:9091%:${TAC_PORT}091%g;
s%:8545%:${TAC_PORT}545%g;
s%:8546%:${TAC_PORT}546%g;
s%:6065%:${TAC_PORT}065%g" $HOME/.tacchaind/config/app.toml

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sed -i.bak -e "s%:26658%:${TAC_PORT}658%g;
s%:26657%:${TAC_PORT}657%g;
s%:6060%:${TAC_PORT}060%g;
s%:26656%:${TAC_PORT}656%g;
s%^external_address = \"\"%external_address = \"$(wget -qO- eth0.me):${TAC_PORT}656\"%;
s%:26660%:${TAC_PORT}660%g" $HOME/.tacchaind/config/config.toml

Snap ;

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curl -o - -L https://snapshot.rpcdot.com/Tac/2025-05-29_tac_1117379.tar.lz4  | lz4 -c -d - | tar -x -C $HOME/.tacchaind

Service Start ;

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sudo systemctl restart tacchaind.service && sudo journalctl -u tacchaind.service -f --no-hostname -o cat

EVM Wallet For Faucet :

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echo "0x$(tacchaind debug addr $(tacchaind keys show wallet -a) | grep hex | awk '{print $3}')"

TacServices

TacSnapshot