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llama.cpp?

llama.cpp is a open-source library for LLM inference on various environments

 - It supports most LLM models with various quantizations by GGUF 

 - It can work with or without GPU

 - It has little dependency

 - It supports several optimized libraries, such as BLAS, RPC(Remote Procedure Call), KleidiAi.

llama.cpp installation

I used docker. The following Dockerfile is used for building docker image.

FROM armv64v8/python:3.12-slim AS builder
COPY --from=docker.io/astral/uv:latest /uv /uvx /bin/

RUN apt-get update && apt-get install -y --no-install-recommends \
	git \
    build-essential \
    cmake \
    libopenblas-dev \
    pkg-config \
    curl \
    libcurl4-openssl-dev \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

RUN git clone https://github.com/ggml-org/llama.cpp.git .

RUN cmake -B build -DGGML_RPC=ON

RUN cmake --build build --config Release

Build and run llama.cpp with docker is very simple.

# Build
docker build -t llama-cpp .

# Run (interactive shell)
docker run --rm -it -v /llama.cpp-models:/models --entrypoint /bin/bash llama-cpp

# Run (llama-cli for local inference)
docker run -v /llama.cpp-models:/models llama-cpp /app/build/bin/llama-cli -m /models/Qwen3-0.6B-Q8_0.gguf -p "hello"

# Run (llama-cli with RPC servers)
docker run -v /llama.cpp-models:/models llama-cpp /app/build/bin/llama-cli --rpc 192.168.1.51:50052,192.168.1.52:50052,192.168.1.53:50052,192.168.1.54:50052 -m /models/Qwen3-8B-Q8_0.gguf -p "hello"

Have FUN !!!

1. Raspbian Setup

Debian 11 Bullseye based Raspbian (for ARM 64bit)

 - 64 bit OS is highly recommended (mkxp-z checks the architecture and optimize to it)

 - RaspberryPi 3B model with 1 GB RAM can run the Pokémon  Another Red
 - To build mkxp-z, some swap memory may be needed

2. mkxp-z install

mkxp-z is a open-source cross-platform player for (some) RPG Maker XP / VX / VX Ace games.

 - Gamepads may work

sudo apt update
sudo apt install git build-essential cmake meson autoconf automake libtool pkg-config ruby bison zlib1g-dev libbz2-dev xorg-dev libgl1-mesa-dev libasound2-dev libpluse-dev 

git clone https://github.com/mkxp-z/mkxp-z.git
cd mkxp-z/linux
make
source vars.sh
cd ..; meson setup build
cd build; ninja

# copy mkxp-z.aarch64 binary to the game folder

3. Pokémon Another Red download

Pokémon  Another Red is a fan-made Pokémon game (https://cafe.naver.com/1209sung/12376)

Download from the google drive link (https://drive.google.com/drive/folders/1c7510OZVr5VlbHWHUOpXGDiTo4HTgFVj)

# copy downloaded Pokemon
cd ~/Pokemon
# copy mkxp-z binary to the game folder
cp ~/mkxp-z/build/mkxp-z.aarch64 .

vi /home/pi/launch_pokemon.sh

/home/pi/launch_pokemon.sh

cd ~/Pokemon
./mkxp-z.aarch64

4. Run script setting

mkdir -p ~/.config/autostart

vi ~/.config/autostart/pokemon-autostart.desktop

~/.config/autostart/pokemon-autostart.desktop

[Desktop Entry]
Type=Application
Name=Pokemon Autostart
Comment=Auto starts Pokemon on login
Exec=/home/pi/launch_pokemon.sh

Reboot & Enjoyyyy

Ssh Configuration

For controller (raspberypi)

## ssh key generation for ssh without login
$ ssh-keygen

## copy key to workers
$ ssh-copy-id root@192.168.1.51
$ ssh-copy-id root@192.168.1.52
$ ssh-copy-id root@192.168.1.53
$ ssh-copy-id root@192.168.1.54

## pssh (parallel-ssh) install
$ sudo apt update
$ sudo apt install pssh

## make hosts.txt file
$ echo "192.168.1.51" | tee -a hosts.txt
$ echo "192.168.1.52" | tee -a hosts.txt
$ echo "192.168.1.53" | tee -a hosts.txt
$ echo "192.168.1.54" | tee -a hosts.txt

## parallel ssh to all workers
$ parallel-ssh -h hosts.txt -i -l root 'echo "hello"'

NFS Configuration

For controller (raspberypi; nfs-server)

## mount SSD
$ echo "UUID=xxxxxxxx-xxxx-xxxx-xxxxxxxxxxxx /mnt/SSD ext4 defaults,nofail 0 2" | sudo tee -a /etc/fstab
$ mount -a

## install nfs server
$ sudo apt update
$ sudo apt install nfs-kernel-server

## nfs configuration @ /etc/exports
$ echo "/mnt/SSD 192.168.1.0/24(rw,sync,no_subtree_check)" | sudo tee -a /etc/exports

## restart nfs server
$ sudo systemctl restart nfs-kernel-server

For worker (Odroid 1,2,3,4; nfs-client)

## install nfs client
$ sudo apt update
$ sudo apt install nfs-common

## mount nfs
$ sudo mkdir -p /mnt/SSD
$ echo "192.168.1.1:/mnt/SSD /mnt/SSD nfs defaults,noatime,x-systemd.automount 0 0" | sudo tee -a /etc/fstab
$ mount -a

Kubernates Configuration

k0s installation

For controller (raspberrypi)

## install k0s
$ curl -sSLf https://get.k0s.sh | sudo sh

## check dependencies
$ sudo k0s sysinfo

In case of dependency check failure, modify boot command (/boot/firmware/cmdline.txt for raspberrypi4)

console=serial0,115200 console=tty1 ... cgroup_enable=memory

## make configuration
$ sudo k0s config create | sudo tee /etc/k0s/k0s.yaml

## if needed modify the configuration

## install controller
$ sudo k0s install controller -c /etc/k0s/k0s.yaml
$ sudo k0s start

## create token for workers
$ sudo k0s token create --role=worker | sudo tee /mnt/SSD/k0s_worker_token

For worker (Odroid 1,2,3,4)

## install k0s
$ curl -sSLf https://get.k0s.sh | sudo sh

## check dependencies
$ sudo k0s sysinfo

In case of dependency check failure, modify boot command (/media/boot/boot.ini for Odroid c4)

setenv bootargs "root=UUID=... systemd.unified_cgroup_hierarchy=0"

## install worker with token
$ sudo k0s install worker --token-file /mnt/SSD/k0s_worker_token
$ sudo k0s start

## check
$ sudo systemctl status k0sworker

k0s kubernates control

## get nodes
$ sudo k0s kubectl get nodes

System Configuration

Controller : 1 x Raspberry pi 4 / Quad Cortex-A72 @ 1.8GHz / LPDDR4-3200 4GB / Debian 12 (bookworm) based Raspbian / 1GbE + USB Ethernet Adaptor / 256 GB SSD (via USB 3.0 for NFS)

Worker : 4 x Odroid c4 / Quad Cortex-A55 @ 2GHz / DDR4-2640 4GB / Ubuntu 22.04 / 1GbE

Network Configuration

dhcp server @ raspberrypi

## eth0 (for internet; Wired connection 1), eth1 (Wired connection 2) static ip setup
$ sudo nmcli connection modify "Wired connection 1" ipv4.method manual ipv4.addresses 192.168.0.100/24 ipv4.gateway 192.168.0.1 ipv4.dns 8.8.8.8
$ sudo nmcli connection down "Wired connection 1"
$ sudo nmcli connection up "Wired connection 1"
$ sudo nmcli connection modify "Wired connection 2" ipv4.method manual ipv4.addresses 192.168.1.1/24 ipv4.gateway 192.168.1.1 ipv4.dns 8.8.8.8
$ sudo nmcli connection down "Wired connection 2"
$ sudo nmcli connection up "Wired connection 2"

## dnsmasq (dhcp server) setup
$ sudo apt update
$ sudo apt install dnsmasq
$ sudo vi /etc/dnsmasq.conf

/etc/dnsmasq.conf

#interface=interface_name
interface=eth1

#dhcp-range=start_ip,end_ip,subnet_mask,lease_time
dhcp-range=192.168.1.50,192.168.1.100,255.255.255.0,12h

#dhcp-host=MAC_address,ip
dhcp-host=xx:xx:xx:xx:xx:x1,192.168.1.51
dhcp-host=xx:xx:xx:xx:xx:x2,192.168.1.52
dhcp-host=xx:xx:xx:xx:xx:x3,192.168.1.53
dhcp-host=xx:xx:xx:xx:xx:x4,192.168.1.54

#dhcp-option=3,gateway
dhcp-option=3,192.168.1.1

#dhcp-option=6,dns-server
dhcp-option=6,8.8.8.8,8.8.4.4

## restart dhcp-server
$ sudo systemctl restart dnsmasq

## NAT setup
$ sudo vi /etc/sysctl.conf

/etc/sysctl.conf

net.ipv4.ip_forward=1

## apply
$ sudo sysctl -p

## iptables NAT rule setup
## type NAT out to eth0
$ sudo iptables -t nat -A POSTROUTING -o eth0 -j MASQERADE

## save iptables
$ sudo apt install iptables-persistent
$ sudo sh -c 'iptables-save > /etc/iptables/rules.v4'

It is very easy to install chrome-driver for RaspberryPI

sudo apt-get install chromium-chromedriver

Nextcloud is very similar to Owncloud, but it has better apps.

1. Download server packages

wget https://download.nextcloud.com/server/releases/nextcloud-23.0.12.tar.bz2

※ Nextcloud 23 is the last version supporting php7.3

2. Install prerequisites

sudo apt install -y apache2 libapache2-mod-php mariadb-server openssl redis-server wget php-imagick php-common php-curl php-gd php-gmp php-bcmath php-imap php-intl php-json php-mbstring php-mysql php-ssh2 php-xml php-zip php-apcu php-redis php-ldap php-phpseclib

3. Unzip the downloaded server package

tar -jxvf nextcloud-23.0.12.tar.bz2 -C /var/www/html/
cd /var/www/html
sudo chown www-data:www-data nextcloud -R

4. Access the URL and finish to install

URL: http://<YOUR_IP>/nextcloud

Admin account

 - Username

 - Password

Storage & database

 - Data folder

 - Configure the database

    ★MySQL/MariaDB★

    Database user

    Database password

    Database name = nextcloud

    localhost

5. Modify memory cache config

When finished installation, you can check the config file( /var/www/html/nextcloud/config/config.php ).

Add the followings into CONFIG for higher performance.

'memcache.local' => '\OC\Memcache\APCu',
'memcache.locking' => '\OC\Memcache\Redis',
'redis' => [
	'host' => '/var/run/redis/redis-server.sock',
    'port' => 0,
],

1. Download server packages

wget https://download.owncloud.com/server/stable/owncloud-10.11.0.tar.bz2

2. Install prerequisites

sudo apt install -y apache2 libapache2-mod-php mariadb-server openssl redis-server wget php-imagick php-common php-curl php-gd php-gmp php-bcmath php-imap php-intl php-json php-mbstring php-mysql php-ssh2 php-xml php-zip php-apcu php-redis php-ldap php-phpseclib

3. Unzip the downloaded server package

sudo tar -jxvf owncloud-10.11.0.tar.bz2 -C /var/www/html/
cd /var/www/html
sudo chown www-data:www-data owncloud -R

4. Access the URL and finish to install

URL: http://<YOUR_IP>/owncloud

Admin account

 - Username

 - Password

Storage & database

 - Data folder

 - Configure the database

    ★MySQL/MariaDB★

    Database user

    Database password

    Database name = owncloud

    localhost

5. Modify memory cache config

When finished installation, you can check the config file( /var/www/html/owncloud/config/config.php ).

Add the followings into CONFIG for higher performance.

'memcache.local' => '\OC\Memcache\APCu',
'memcache.locking' => '\OC\Memcache\Redis',
'redis' => [
	'host' => '/var/run/redis/redis-server.sock',
    'port' => 0,
],