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About
I enjoy doing things and post some of them on this website. Things may include taking photos, poking at public transit APIs, or putting caffeine into chocolate. Blinkenlights and embedded development are nice, too, though I don't really get around to that anymore.
At work, I research performance modeling and performance-aware configuration methods for software and hardware product lines. Please refer to my professional website for details.
Resources
Contact
You can reach me by E-Mail (derf@finalrewind.org) and on IRC (derf0 @ oftc, hackint).
My PGP key for E-Mail encryption is 64FE6EC0 55560F9E F13A3044 19E6E524 EBB177BA.
I occasionally post stuff on the Fediverse (@derf@social.skyshaper.org).
Outside of the internet, there is a good chance of finding me at the Chaosdorf Häkelspace hackspace.
The remainder of this page duplicates a curated sub-set of projects and the latest blog entries.
Projects
> efa Essen Martinstr Düsseldorf Hbf 14:34 ab Essen Martinstr.: Bstg. 1 Straßenbahn 108 Essen Altenessen Bf Schleife 14:38 an Essen Hauptbahnhof: Bstg. 1 14:47 ab Essen Hauptbahnhof: 2 R-Bahn RE11 (RRX) Düsseldorf Hbf 15:24 an Düsseldorf Hbf: 10
> hafas-m 'Hamburg Dammtor' 14:43 +45 ICE 2922 Hamburg-Altona 15:10 U 1 Ohlstedt, Hamburg 15:10 +4 Bus 112 Osterbrookplatz, Hamburg 15:10 NBE RB61 Itzehoe
> db-iris 'Dortmund Hbf' 14:38 +16 IC 2027 Passau Hbf 11 14:39 ABR RE11 Kassel-Wilhelmshöhe 8 14:41 RE 57 Winterberg(Westf) 2 └──── RE 57 Brilon Wald 2 14:41 S 5 Hagen Hbf 5 14:42 S 2 Dortmund Hbf 6 14:45 +1 RE 1 Aachen Hbf 16
News
Travel::Status::DE::IRIS v1.90
Travel-Status-DE-IRIS-1.90.tar.gz (signature)
- Update stations list
- Result: weaken (circular) wing references
- Result: include
arrival_wings
departure_wings
replaced_by
replacement_for
inTO_JSON
Travel::Status::DE::DeutscheBahn v4.16
Travel-Status-DE-DeutscheBahn-4.16.tar.gz (signature)
- Journey: Fix date parser for cross-midnight journeys that start on the 1st through 9th day of a month.
Travel::Status::DE::DeutscheBahn v4.17
Travel-Status-DE-DeutscheBahn-4.17.tar.gz (signature)
- Journey: handle empty / undefined nameS fields
Travel::Status::DE::VRR v1.22
Travel-Status-DE-VRR-1.22.tar.gz (signature)
- Do not use now-deprecated smartmatch features
Travel::Routing::DE::VRR v2.22
Travel-Routing-DE-VRR-2.22.tar.gz (signature)
- Rewrite code not to use Perl's formerly experimental and now deprecated smartmatch features
Travel::Status::DE::DeutscheBahn v4.14
Travel-Status-DE-DeutscheBahn-4.14.tar.gz (signature)
- Journey: Correctly calculate datetimes when requesting a cross-midnight journey after midnight. Previously, those were off by 24 hours.
Travel::Status::DE::DeutscheBahn v4.15
Travel-Status-DE-DeutscheBahn-4.15.tar.gz (signature)
- HAFAS: Add
similar_stops_p
function
Travel::Status::DE::DeutscheBahn v4.13
Travel-Status-DE-DeutscheBahn-4.13.tar.gz (signature)
new_p
: Return a Travel::Status::DE::HAFAS instance in addition to the error message when rejecting a promise after receiving a HAFAS reply
Travel::Status::DE::IRIS v1.89
Travel-Status-DE-IRIS-1.89.tar.gz (signature)
- Update stations list
Travel::Status::DE::IRIS v1.88
Travel-Status-DE-IRIS-1.88.tar.gz (signature)
- Update stations list
Travel::Status::DE::VRR v1.21
Travel-Status-DE-VRR-1.21.tar.gz (signature)
- Add service VRR3
- Update service URLs for VVO, VRN
- Remove discontinued services SVV, TLEM, VBL, Verbundlinie, VOR
Travel::Routing::DE::VRR v2.21
Travel-Routing-DE-VRR-2.21.tar.gz (signature)
- Add service VRR3
- Update service URLs for VVO, VRN
- Remove discontinued services SVV, TLEM, VBL, Verbundlinie, VOR
Travel::Status::DE::IRIS v1.87
Travel-Status-DE-IRIS-1.87.tar.gz (signature)
- Update stations list
Travel::Status::DE::IRIS v1.86
Travel-Status-DE-IRIS-1.86.tar.gz (signature)
- Update stations list
Travel::Status::DE::IRIS v1.85
Travel-Status-DE-IRIS-1.85.tar.gz (signature)
- Update stations list