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HASS, DuckDNS and Let's Encrypt

When you want to make a local HomeAssistant (a home automation software I mentioned before) available from the Internet, you probably want to secure it with SSL. There's an official tutorial on how to do that, but it has a few problems:

  • It uses the official certbot client, which is super heavy and does all kind of things you don't need
  • It requires that port 80 is not used while refreshing certificates
  • It requires to forward port 80 from the internet to your internal HomeAssistant server

So here's is how to do it differently:

  • we use the very lightweight dehydrated script (formerly known as
  • we use DNS-01 challenges to avoid needing any open ports

Last updated: 2017/08/10 21:48 · Permalink · Comments

New Phone

honor-9.jpg I bought a new phone. My Sony Z3 compact's battery was starting to give up, the internal storage was too limited, the backplate was loose and I wasn't too happy with its overall performance anymore. Unfortunately there seems to be no phone matching all my requirements:

  • recent model (2016+)
  • decent CPU
  • lots of RAM (>3GB)
  • large battery (>3000mAh)
  • lots of storage (>32GB) and SD card support
  • less than 500€
  • 4.7 inch display

Especially the last requirement is problematic. It seems I'm the last person who likes smaller phones. In the end I decided to to swallow the bitter pill and go with a bigger form factor and bought a Huawei Honor 9. It is very comparable to Google's Pixel 5 but is 44% cheaper than Google's pricy flagship:

Honor 9 Pixel 5
Dimensions 147.3×70.9×7.5mm 143.8×69.5×8.5 mm
Weight 155g 143g
Screen 5.15 inches 5.0 inches
Resolution 1080×1920 pixels (~428 ppi) 1080×1920 pixels (~441 ppi)
Storage 64GB 32GB
Card Slot MicroSD None
Memory 4GB 4GB
OS Android 7.0 (Nougat) Android 7.1 (Nougat)
Chipset HiSilicon Kirin 960 Qualcomm MSM8996 Snapdragon 821
CPU Octa-core (4×2.4 GHz Cortex-A73 & 4×1.8 GHz Cortex-A53) Quad-core (2×2.15 GHz Kryo & 2×1.6 GHz Kryo)
GPU Mali-G71 MP8 Adreno 530
Primary Camera Dual 20MP + 12MP
2x optical zoom
Secondary Camera 8MP 8MP
3.5mm jack yes yes
NFC yes yes
InfraRed yes no
Fingerprint yes yes
Battery 3200mAh 2770mAh
Price 429€ 759€

So far I like it a lot. I switched Huawei's quite decent launcher against my personal favorite Nova Launcher and uninstalled most of the preinstalled apps. I haven't used the camera too much, but the very first snapshot came out quite nice:


phone, review, huawei
Similar posts:
Last updated: 2017/07/04 22:16 · Permalink · Comments

Automated Plant Watering

Our balcony is commonly known as the “Garden of Death”. Kaddi and I love to have herbs and flowers on the balcony but we suck at watering the plants. For years I said that we should have some kind of automatic system for that. This year I finally decided to build one.

Pictures at the very end.

Last updated: 2017/06/10 22:22 · Permalink · Comments

Mysterious Package Company

A while ago, I wrote about a curious letter I received and how with a bit of googling, I figured out what it was.

The letter was the first of more to follow, all part of a “Mystery” bought by my girlfriend at the Mysterious Package Company for me.

From time to time I get angry mail and comments about how my original blog post “spoils the fun” because it's now easy to figure out what's going on by a quick google search. I find that a bit silly, since it's a blog post about how I used Google to figure out what the letter is about. So my blog post may have made it a bit simpler, but as I wrote – the mystery was solvable already before my post.

Nonetheless I redacted the names and identifiers in my original post. But Google continued to find my post anyway. So today I created a robots.txt entry which should remove the post from search engines altogether.

However sometimes people ask how the thing continued and if I spoiled it for my self by googling. So here's a bit of a review on the mystery I received. If you currently have your own mystery going, you might want to stop reading here.

Last updated: 2017/05/18 16:24 · Permalink · Comments

Adventure Time

I recently played through two new point'n'click adventure games. Here's what I think about them.

Last updated: 2017/04/20 10:07 · Permalink · Comments

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