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Just a collection of things that might be worth implementing. Maybe giving someone ideas :)

raspi4 / Nintendo switch benchmarking

I compared pure computing power, but a) power consumption and b) GPU performance would be interesting. Maybe in autumn, when Tokyo over day temperature is below 30°C and the raspi4 is running better ;)

Performance Co-Pilot denki PMDA

powertop can show consumption, but there is nothing for recording such data. PMDA-denki or PMDA-power could do that. Ideas for this. German video "Einfluss von Software auf den Ressourcenverbrauch (bub2018) — Jens Gröger" from the “Bits und Bäume 2018” conference. Also this talk (german) shows that the same work is sometimes done by various pieces of software with very different energy consumption.

World energy map has very nice graphs, but only regarding Germany. Data for the whole world should be collected and made available like this, also comparing countries.

unicode map

There is Unicode巨大地図, but it seems not open and costs money. Such a project, done in the open would be nice. I.e. a website where one selects a range of unicode codepoints, and a pdf file is generated containing the characters from the selected unicode codepoints.

propaganda analyzer

After reading an article on AI and how it helps propaganda, I wonder if one could make a counterproject analyzing news, and trying to understand trends and what the propaganda machine is trying to tell. The influenced people suck up the propaganda eventually, but probably without noticing it. How about algorithms seeing these trends and attempts for propaganda before we notice?

word distribution wordmap

This post on languagelog shows the distribution of the word “this” in America. Would be fantastic to see such distributions over the world, with a freely selectable search term.

green window project

Moving into a very small flat in Tokyo, with no good view outside? Ideas of using computer screens to replace windows are coming up. Most interesting is to collect content: waterfalls, nature and so on, free content. Kickstarter projects are also around:

free() kanjidamage and related books look like the sane approach to learn Kanji. There should be a free version of which

  • has a free database in the background, like Jim Breens edict ( )
  • where everybody can contribute own explanations, in his own native language
  • and where the database of Kanji can be freely ported. I want to be able to use it directly as “mouse hovering Kanji” on websites, like with Rikaichan/rikaisama. One should also be able to use this database directly on the ebook.
  • from the database also anki decks could be generated, and pdf
  • one could extend the database with own Kanji
  • Also from the commandline one should be able to call i.e. “openkanji 手段” and the browser should open 2 tabs with the details to both 文字
  • Even 将 from 将来 does not exist. This should be open, people should be free to request additions.

lang8 ^2 is a great website, one can write texts in various languages and get them corrected. In return, one corrects others texts. A karma system helps to spot if people are contributing or only expecting others to check their texts. Ideas which could help to improve future implementations of lang-8:

  • One can also write down the text in the native language, that is a good thing. It should be possible though to also write in multiple languages; I would prefer to write some things in Japanese, English and German - and can then link this to friends.
  • One receives am email once a correction or comment appears. There should be a link to the article this refers to, directly in the email. Its frustrating to read this email in a train on the mobile and not beeing able to open it because one would need the lang-8 credentials at hand.
  • Often very interesting threads spin up below one article/post. It should be possible to compose an answer there, and have this actually again appear as an “article” in itself. The comments below articles are often so interesting that an answer deserves an article in itself.

opensource media sync software

Imagine having media files like pdf, mp3 and videos on multipe computers. You watch the first half of a movie on the desktop, later you enter the train. When starting to play the same video file, it should continue at the place where I stopped before. Same for audio files and pdf. This should be done in syncing the current “media place state” to a server process which always runs. The media players like mplayer and evince would need how to deal with this, for storing the current “play state” and also fetching the state to continue with playing. Apple started to provice this functionality, but there is nothing opensource as of now, AFAIK.

virtual virus aquarium

This xkcd++ would be worth implementing: . Nested KVM could help

testing filesystem maturity

How much of a blockdevice has to be changed so the filesystem can not repair it? If a single bit gets changed, how are chances that this one bit will lead to lost data? Or even go unnoticed? One could in a blockdevice modify single bits, and then verify a) if mount notices something b) if fsck notices something c) if files ontop change silently. Comparing this for multiple filesystems.. is interesting.

language learner book exchange

Everybody has books around from childhood: books explaining things in simple words, and simple storys. Those books are not of big value to us, they are in danger of beeing thrown away without fulfilling a further purpose.. but this kind of books is important to others learning this language! Hm.. one could setup a web portal to exchange such books. Doing the environment a favor, and helping each other to learn languages!

communication-hub of the future

Recently visiting an old fellow at a research centre at Garching i saw they use video-chat on a daily basis. Also for things where i would simply prefer instant messaging. There are many things, all provided by one single app:

  • I want a roaster with presence notification, messaging to other people (like jabber provides)
  • Ability to use groupchats (like MUC-chat in jabber, or IRC)
  • Ability to share screen with other people (like vnc)
  • Sharing of whiteboards with other people (coccinella implements this for jabber)
  • voice over ip and video phone (jabbin implements this for jabber)
  • beeing able to really simple establish network-connections (like hamachi does)
  • using this on the internet, vs. using it in restricted intranets. maybe securely connecting both in one app on work-desktop.
  • beeing able to use all this as plugins with a single application, would make the perfect media-hub.

hamachi-like jabber xep (extension)

Hamachi provides an instant messenger, users can establish vpns connecting each other. Thats a great idea, just that hamachi isnt free but proprietary. Why has noone yet suggested a jap to implement this into jabber? Maybe using openvpn as backend?

fctix/mozc for Fedora

No such package as of now.

Anti fingerprinting browser plugin

Websites make your browser execute javascript, and use the returned values for fingerprinting. Browser plugins could in some area fake the repplies, to make fingerprinting harder. I have not seen such a project yet. Details on fingerprinting: .


I get requests for more Japan content, in different ways. More specifically:

  • How about a book regarding your life in Japan? I would buy it. (Not enough there is enough content. Also, I would rather put it under creative commons like my japan-blog and pictures)
  • Newspaper, yearly: pictures, and text. (problem: either make it in JP/EN/GER, or decide between one of the languages. Some relatives only understand German.)
What I do so far
  • online japan-blog: much text, done with asciidoctor. Content spans multiple years.
  • online pictures: mostly pictures. Content spans multiple years.
  • printed book: postly pictures. Content spans always one year, I have the book then printed for relatives and create a (poor quality) pdf version, not good for printing.
  • years end email: only text and links. Content spans one year, mail sent to friends.
What I would like to improve
  • Leave media open: generate content and have it online, or as pdf file, or printed
  • Have content in all of English, Japanese, German

Japan/Germany comparison

Both countries have so much in common, problems like aging population and declining birthrates. Yet, so many differences: more taxes in Germany, but these are for example spent to pay universities, while in Japan one has to pay that by oneself. Would be a good project to compare where both countries are spending their taxes on!

new hobbies


  • introduction to cleartext rfc-protocolls with examples for smtp, ssh (just 1 line), irc, pop3
  • has communism a chance? with communism vs. capitalism facts, discussion
  • overview: several ha-cluster software suites for linux heartbeat, rh-cluster, veritas cluster, hp searviceguard - would require other contributor, mostly busy with veritas/rh-cluster/steeleye currently
  • gluster: overview, steps required for a simple setup, comparison with lustre, benchmark?
project_ideas.txt · Last modified: 2021/03/23 12:22 (external edit)