Nvidia install Kubuntu 25.10

 Deep breath and...

We installed the nvidia stuff using the ubuntu method here. 

xmas tree

 Right at the end of an all-nighter. Nice area. Must revisit with more frames. THIS WITH THE SV220

nebulosity around cluster ngc2264 in monoceros
veTEC571 on q150    18x4min @ hcg100

pacman

 Loadsa attempts at this. Never get it quite right. This time used as a time filler until ngc1333 got high enough. Testing filter sv220.

emission nebula ngc281 pacman in cassiopeia
veTEC571 on q150    28x4min @ hcg100
process: seti

nebula california

 I think because it looks vaguely like the state of california (?)

emission nebula ngc1499 california in perseus
veTEC571 on q150    36x4min @ hcg100
process: seti-HHO

process: rgb

la roseta

 This year's roseta. A large cloud of glowing gas centred on an open star cluster.

emission nebula centred on ngc2244 in monoceros
veTEC571 on q150    34x4min @ hcg100
process: rgb

process: HOO

process: forax

process: seti-HSS

hh season 8

 Three attempts so fat this year. same date. Different process. Kstars flatpak remote, using a vnc client. Advantage: if the connection drops, the server continues; albeit without supervision, so you hopefully it continues through until dawn. All post processing in setiastrosuitepro.

nebulosity around alnitak in orion
veTEC571 on q150    36x4min @ hcg100
process: forax

process: channel red

process: rgb

kubuntu 25.10 python 3.12

problem
 25.10 comes with python3.13 system-wide. If we need 3..12 e.g. for setiastrosuitepro...

dual-boot Pop!_OS 24.04 - Kubuntu 25.10

what it does 

-I think- It puts python3.12 in /usr/local which is before /usr in the search path.
Inspiration from here. 

method

update
sudo apt update && sudo apt upgrade -y

install requirements
sudo apt install -y software-properties-common build-essential \ zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev libssl-dev \ libreadline-dev libffi-dev curl libsqlite3-dev wget llvm \ libbz2-dev tk-dev

build and install
mkdir -p ~/py3.12
cd py-3.12
wget https://www.python.org/ftp/python/3.12.12/Python-3.12.12.tgz
tar -xf Python-3.12.12.tgz
cd Python-3.12.12

./configure --enable-optimizations
make -j$(nproc)
sudo make altinstall

notes
we use altinstall to retain the system installed python3

check
python3.12 --version
Python 3.12.12

which python3.12
/usr/local/bin/python3.12

python3 --version
Python 3.13.7

python3 --version
Python 3.13.7

pyinstaller
So that pyinstaller can find the libraries, activate the venv, then before calling pyinstaller:
sudo ldconfig /usr/local/lib