I’m looking at AI/ML-powered coding assistants (such as mutable.ai, github’s CoPilot, tabnine, and even Alibaba AI assistant – but there everything was in Chinese so I didn’t proceed at all with it), and found – with sadness – that Kite, one of the longer-existing solutions (since 2014!) has gone out of business…

Here is Kite’s farewell for you to read.

Kite did open-source many parts of their technology/software stack, though I didn’t check how comprehensive those parts are, and if that is anywhere near enough to fork/continue their work.
I wonder if there already exists an open-source project focusing on ML-based code completion for e.g. Python – let me know in the comments if you know one!

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Just one command: sudo btrfs balance start -v -mconvert=dup /toplevel/
where /toplevel/ is your mountpoint of the btrfs root, -v is there for verbosity (not too verbose, don’t worry), and -mconvert=dup literally says act on metadata only, convert data profile to DUP.

This will duplicate both metadata and btrfs system data.
Verify with: sudo btrfs fi df /toplevel:

Data, single: total=10.00GiB, used=3.88GiB
System, DUP: total=64.00MiB, used=4.00KiB
Metadata, DUP: total=512.00MiB, used=286.18MiB
GlobalReserve, single: total=96.00MiB, used=0.00B

Explanation: on SSDs, mkfs.btrfs creates metadata in single mode (because of widely spread SSD deduplication algorithms negating duplicate entries). However, second copy of metadata increases recovery chances, especially so if your SSD does not deduplicate writes. Hence the desire to add metadata/systemdata duplication after the filesystem is created.

Preparing to dismantle my physical server (and move different hosted things to one or more VPS),
I’ve realized that an email server is necessary: to send website-generated emails, and also
receive a few rare contact requests arriving at the websites.

My current email server was configured eons ago, it works well,
but I have no desire to painfully transfer all the configuration…
Better install something new, shiny and exciting, right?

I had 3 #self-hosted, #mail-server bookmarks:

• Mail-in-a-box
• iRedMail
• Modoboa
• Sovereign

(Sovereign, the 4th one, was addded after reading more about Mail-in-a-box.)

Here are my notes on what seemed important about these 4.
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A while ago I was looking for GTD/TSW-compatible android app.
I ended up using Trello, Keep, and Calendar.

But I always keep looking for new/improved tools, as right now I feel the best one does not exist…
(If the best one can exist at all – requirements and conditions change all the time, so there is no fixed perfect immovable target.)

I have been contemplating trying out the TSW methodology, but neither Keep nor Trello are quite there yet.
I ended up using Evernote; after recent management changes and actually trying to become profitable it may as well last long enough.

Everything was fine and calm until I have found workflowy yesterday.
In essence, it is very similar to the text-file-based system that I have been using for at least half a year.

Briefly, it is a web-based text editor on steroids, with possibly infinite nesting lists and seemingly full keyboard shortcuts control – no mouse needed.
I recommend that you try the demo – it seems to be fully functional, and there is no need to sign up.

This discovery made me read through pages and pages of this class of software tools.
Here is a very brief summary of my findings: Read the rest of this entry »

Another symptom is a message along the lines of

the notebook you are searching in has been moved or renamed since the saved search was created

(which is not true).

I had this problem, and found a solution.

Go to your Evernote on a client where you can edit saved searches (Windows for me),
edit all the searches, and make sure that notebook name is quoted in the search (and also, possibly, with all proper letter cases).

I found this solution by first creating a search from the web-beta interface, it looked like this: notebook:"Mynotebook" tag:1-now
All the crossed-out searches (despite working totally fine on Windows) looked like this: notebook:Mynotebook tag:1-now
or even like this (note the lower-case 1st letter of the notebook name): notebook:mynotebook tag:1-now.

After editing saved searches and synchronizing, they all appear (and work) just fine in the beta web-interface.

If you cannot edit your searches right now, there is another workaround: all the saved searches work fine for me from the Shortcuts menu (a star in the left panel).

Hope this helps!

If you want to export Notes to a PDF from LibreOffice Impress 5,
and dutifully set the appropriate checkbox in PDF export dialog,
then you will get all slides twice: first just all the slides as with usual PDF export, and then all the Notes pages.

There is an easy solution to get Notes-only without editing the PDF.

If you have a PDf printer installed (most Linux distributions, and Windows 10), just do File -> Print from Impress,
then under the Print sub-header choose Notes from the Document drop-down (see picture).
Make sure to set the proper paper format for the PDF printer (A4 in my case).
Then print, and save the resulting PDF.
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prinseq-lite.pl is a utility written in Perl for preprocessing NGS reads, also in FASTQ format.
It can read sequences both from files and from stdin (if you only have 1 sequence).

I wanted to use it with compressed (gzipped/bzipped2) FASTQ input files.
As I do not need to store decompressed input files, the most efficient solution is to use pipes.
This works well for a single file, but not for 2 files (paired-end reads).

For 2 files, named pipes (also known as FIFOs) can be used.
You can create a named pipe in Linux with the help of mkfifo command, for example mkfifo R1_decompressed.fastq.
To use it, start decompressing something into it (either in a different terminal, or in background), for example zcat R1.fastq.gz > R1_decompressed.fastq &;
we can call this a writing/generating process, because it writes into a pipe.
(If you are writing software to use named pipes, any processes writing into them should be started in a new thread, as they will block until all the data is consumed.)
Now if you give the R1_decompressed.fastq as a file argument to some other program, it will see decompressed content (e.g. wc -l R1_decompressed.fastq will tell you the number of lines in the decompressed file); we can call program reading from the named pipe a reading/consuming process.
As soon as a consuming process had consumed (read) all of the data, the writing/generating process will finally exit.

This, however, does not work with prinseq-lite.pl (version 0.20.4 or earlier), with a broken pipe error. Read the rest of this entry »