Install a Chromium older version - installation

I'm trying to downgrade the last Chromium update in Mint 20.2 (Focal), but I can't get any .deb file.
I've found this for Crhome...
I could also do it by builind an older package like this, but i don't know how to get it done. I need some help to get it done.
Thank's in advance.

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How to install python without executable file on Windows?

I am just starting with Python, and I need to install Python 3.8 version. I assume this is the right place to get it:
https://www.python.org/downloads/release/python-3811/
After extracting .tar I get these files: screenshot of folder
but I don't know what to do next.
I searched for the answer and then I tried installing it from command line, however - without success.
I would be grateful if you could help me with such a basic but essential issue.
Thank you!
Read this Using Python on Windows

How to Install old version go-vim plugin

I am a new golang developer. My company uses go 1.10.2, and I hit following error during installing vim-go
Error installing golang.org/x/tools/cmd/gopls: # golang.org/x/tools/internal/lsp/source^#../../../golang.org/x/tools/internal/lsp/source/symbols.go:232:18: ti.EmbeddedType undefined (t
ype *types.Interface has no field or method EmbeddedType
It turns out due to the old go version. https://github.com/fatih/vim-go/issues/2246, https://github.com/golang/go/issues/31864. Since upgrade go version is not an option, the only choice I can think of is to install an old version vim-go that supports go 1.10.2. But I am not sure how to do so.
This is how I install vim-go now:
git clone https://github.com/fatih/vim-go.git ~/.vim/pack/plugins/start/vim-go
then open up vim and run :GoInstallBinaries (where above error show up)
Any suggestions would be great. Since I am neither a vim nor a go person before, more details would be appreciate!
You should try goenv it support multiple version of golang.
Here is the installation guide
https://github.com/syndbg/goenv/blob/master/INSTALL.md
And after installation you can choose and install any version from the list.
Just by typing..
goenv install 1.10.2
Solved it by cloning the repo and checkout to an old commit

Gentoo package mask not working with exact version number

I installed mysql-5.6.42 on a Gentoo system. There's a newer version 5.7.24, but I don't want to upgrade for that version. So I masked the package under /etc/portage/package.mask
=dev-db/mysql-5.6.42
When I want to upgrade for example php portage wants to upgrade mysql to 5.7.24.
Why does package.mask not work?
I tried <=dev-db/mysql-5.7.0 the result is the same.
Please check your versions again
=dev-db/mysql-5.6.24 vs. >dev-db/mysql-5.6.42.
echo ">dev-db/mysql-5.6.42" > /etc/portage/package.mask/mysql
I think there is a typo in your question. Perhaps it is also in your config.
See also: https://wiki.gentoo.org/wiki/Knowledge_Base:Masking_a_package

how can I manually install a module in qpython?

I am using qpython as a non-root user and I have googled it up but all recommendations don't work both manually and using pip...I keep on getting errors...
I get erors when I use both:
pip install requests from pip console
and:
import pip
pip.main(['install','requests']) on python console
The error is something like:
cannot fetch base url https://pypi.python.org/simple/
could not find any downloads that satisfy the condition requests
...
if there is a workaround or a fix I would be happy to accept...
Did you use the newest version(>=2.0.7) Installing requests from QPYPI works well in the newest version. https://github.com/qpython-android/qpython/releases
Yes! This fixed my problem once I used the beta v2.1 from
https://github.com/qpython-android/qpython/releases
Google play did not give me the latest version (I had 1.xx)
I was able to use QPYPY to install requests and it automatically installed the required library urllib3.

I can't seem to get rdkafka to play nice with the confuent-kafka-go package

this is my first question on StackOverflow. Usually I find a solution from someone else's question but this time the internet does not seem to have many answers.
So I'm getting this message after using go get and every time I try and compile and run my application.
# pkg-config --cflags rdkafka
Package rdkafka was not found in the pkg-config
search path. Perhaps you should add the directory containing `rdkafka.pc'
to the PKG_CONFIG_PATH environment variable Package 'rdkafka', required by
'virtual:world', not found
I searched the issues on the github page for the repo and found one thread related to this, but none of those solutions seem to work for me. I'm running fedora 26, I have go 1.9 installed.
I've tried:
dnf install
Compiling from source as instructed on their README
yum install because I became desperate.
Downloading and installing from the RPM
Has anyone come accross this and maybe have an idea of how I can fix it?
I suggest that you install librdkafka from Confluent's repository as described in their documentation. But I think that you'll need to build librdkafka from source RPMs, like I'm doing for Ubuntu.
So I got it working thanks to Remi. Adding the repo from https://rpms.remirepo.net/ (I used the one for Fedora 26). Then just installing it using:
sudo dnf --enablerepo=remi install librdkafka-devel

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