The result of testing Linux deepin 15.4 It has been more than satisfactory, a distro with a very good visual appearance, with a quite acceptable performance and with a successful variety of applications installed by default. Now, despite the fact that the distro is ready to be used by any user, we can perform some optimizations after installing Deepin 15.4 we will see it next.
What's new in Deepin 15.4?
I personally consider Deepin one of the best Chinese distro I've seen in a long time, as it has the best visual appearance of today that it knows how to mix with good performance and updated software. Similarly, the distro comes equipped with an advanced control center that will allow us to parameterize and configure our distro to our preference.
The deepin development team has taken care of every detail in this new distro, from its installation interface which has intelligent detection, QR code scanning and messages about the distro. Likewise, they have added the Linux kernel 4.9.8 to this distro in order to have a more expanded hardware support.
The deepin 15.4 desktop is simply great, with quick access icons, adaptable toolbar, advanced customization menu, among other features. 
I recommend you to see some of the following deepin reviews where its characteristics and the beauty of this distro are detailed.
Some considerations to take into account before starting the guide
- Download Deepin 15.4 It is a debian-based distro with a custom desktop, so most of the applications, guides and instructions designed and developed for this distro work in deepin.
- Depending on your hardware, some of the deepin functionalities may not work properly, in that case please report it.
- The recommendations that we indicate below must be carried out at your own risk, they are the result of our experience and the reading of various experts in the field.
Steps to perform after installing Deepin 15.4
Update the deepin repositories to the most acceptable ones for your geographical location.
This is a step that I consider essential after installing deepin since the repositories that are activated by default are too slow for most of the countries that are outside the Asian continent, you can try changing to one of the repositories that appear in the list that Deepin offers us the update options (I recommend the one from Brazil), but elav also shared a list of the alternative mirros that you can use and that I share below
To add these repositories we must edit the sources.list to do so, execute the following command: sudo nano /etc/apt/sources.list
America: United States, Mexico, Dominican Republic, Puerto Rico, etc.
deb ftp://mirror.jmu.edu/pub/deepin/ unstable main contrib non-free deb ftp://ftp.gtlib.gatech.edu/pub/deepin/ unstable main contrib non-free deb ftp: // mirror .nexcess.net / deepin / unstable main contrib non-free
Spain and Europe:
deb ftp://deepin.ipacct.com/deepin/ unstable main contrib non-free deb ftp://mirror.bytemark.co.uk/linuxdeepin/deepin/ unstable main contrib non-free deb ftp: //mirror.inode .at / deepin / unstable main contrib non-free
Denmark:
deb ftp://mirror.dotsrc.org/deepin/ unstable main contrib non-free
South America:
deb ftp://sft.if.usp.br/deepin/ unstable main contrib non-free
Russia:
deb ftp://mirror.yandex.ru/mirrors/deepin/packages/ unstable main contrib non-free
Burgaria:
deb ftp://deepin.ipacct.com/deepin/ unstable main contrib non-free
United Kingdoms:
deb ftp://mirror.bytemark.co.uk/linuxdeepin/deepin/ unstable main contrib non-free deb ftp://ftp.mirrorservice.org/sites/packages.linuxdeepin.com/deepin/ unstable main contrib non-free
Germany:
deb ftp://ftp.gwdg.de/pub/linux/linuxdeepin/ unstable main contrib non-free deb ftp://mirror2.tuxinator.org/deepin/ unstable main contrib non-free deb ftp: //ftp.fau .de / deepin / unstable main contrib non-free
Sweden:
deb ftp://ftp.portlane.com/pub/os/linux/deepin/ unstable main contrib non-free
South Africa:
deb ftp://ftp.saix.net/pub/linux/distributions/linux-deepin/deepin/ unstable main contrib non-free
Philippines:
deb ftp://mirrors.dotsrc.org/deepin/ unstable main contrib non-free
Japan:
deb ftp://ftp.kddilabs.jp/Linux/packages/deepin/deepin/ unstable main contrib non-free
Update the system and repositories:
Let's execute the following command from our terminal:
sudo apt-get update && apt-get upgrade
You can also do it from the configuration interface, in the system update option. You can take advantage of and approve the search for automatic updates.
Install proprietary drivers:
We often need the proprietary drivers so that our computer works better, in that case we can install it as follows, for this we simply open the driver manager application that deepin has installed by default, enter our password and select the available drivers for our computer.
Install Synaptic
Although the Deepin market is quite easy to use and has a large number of applications, I consider that synaptic is a more complete application repository so I recommend its installation, for this it is enough that we download the version of 32 bits o 64 bits corresponding to your architecture and install using gdebi, or any other package manager.
Change language to wps
The office package that deepin brings by default is wps, we must change the language to Spanish so that it accepts all the characters of our language and the corrector works properly.
To do this, just open wps and go to the upper left panel where you will have an option that says change language (switch language), we will look for the language (or dialect) that we want and we accept it, the corresponding package will be downloaded and the language will change.
Install windows fonts:
We can install the windows fonts with the following command
sudo apt-get install ttf-mscorefonts-installer ttf-bitstream-vera ttf-dejavu ttf-liberation ttf-freefont
Get the most out of the deepin store
Something that has deepin is an excellent store, beautiful, organized, fast, with a large number of applications and with a simple installation, my personal recommendation is that we get the most out of this store, looking for applications that we do not know, testing or installing the most used applications.
With these small changes we will have a deepin a little more in tune, that if we start to modify some other things, something more productive will surely come out.