Jorijn Schrijvershof

DevOps Engineer from Brabant, The Netherlands 🇳🇱.

I provide reliable Managed Hosting, with personal support. Passionate about Linux, Kubernetes & PHP, and occasionally contribute to open source. Off-duty: running, lifting weights & Krav Maga practitioner.

Also, the guy behind the toot.community. :mastodon:

#DevOps #Hosting #WordPress #PHP #Linux #OpenSource #tootcommunity #running

Website: https://jorijn.com
Github: https://github.com/jorijn
Location: The Netherlands
Signal: https://signal.me/#eu/FtFAfy44nyJrM5FEfFHfBJGvMJWMhD6tmS4SEn82KPIPu83Rh5RPdKVUIRGTcQ34

Public Key

npub17ze3pufug78z26uwfmgwwphj38lfr0fanala8qxxfz0g496u77hq5t0cpk

NIP-05 Address

jorijn_at_toot.community@momostr.pink

Profile Code

nprofile1qqs0pvcs7y7y0r39dw8ya588qmegnl53h57e7l7nsrry3852jaw00tspz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0dsgk37ch

Publishing to

relay.damus.io

nos.lol

Author Public Key

npub17ze3pufug78z26uwfmgwwphj38lfr0fanala8qxxfz0g496u77hq5t0cpk

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Published at

2026-10-09T12:17:34Z

Kind type

0 Metadata

Event JSON

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Last Notes

2026-06-18 08:07:06 UTC

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congratulations to the both of you!

2026-03-30 10:57:19 UTC

I'm having a little laugh about the translations in @npub12r3…zz58 for Dutch: "Fork" makes sense, but it's translated as the utensil we use to eat our potatoes.
https://static.toot.community/media_attachments/files/116/317/761/137/472/075/original/8cebeb6b7efa0afa.png

2026-03-17 13:18:57 UTC

Since I'm upgrading my laptop from 14" to 16", it's triggered an interesting chain reaction. The 16" doesn't fit the current backpack, so it needs to be upgraded.
I haven't told my wife that it might not fit the #motorcycle either.

2026-03-15 09:10:27 UTC

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But! The weather was fantastic, and the route was stunning. I really enjoyed the first 17km, at least. Still, I’m very proud of my achievement. The goal was to finish it in under 2 hours, and I came very close.

2026-03-15 09:04:12 UTC

Ran my first half-marathon yesterday: 2:03:33.
The first 17km felt controlled. Power on target, everything according to plan. Then km 18 happened, and the plan left the chat.
Lost 75 seconds per km over the final 4km. The post-race data analysis was clear: turns out I was running on half the fuel I needed (49g carbs/hour instead of 80+) while holding a power target (303W of CP 325W) that was too ambitious for the duration.
Lessons were learned here.
https://strava.app.link/Ez07fkdyw1b
#Stryd #running

2026-03-09 16:03:11 UTC

Damn it. This guy is sick. Kidney problems. Send him your best wishes.
https://static.toot.community/media_attachments/files/116/200/057/213/655/943/original/10e3749bca4a8145.jpeg

2026-03-02 13:03:21 UTC

#Claude is down. I suppose I'll think for myself now.
(This is a joke)

2026-02-21 13:22:12 UTC

Ran my first half-marathon this morning. Feeling very grateful. The training through winter, despite rain, cold, and snow, is really paying off. At this point, the mid-March race feels like a victory lap.
Am craving a nap right now, though.
https://strava.app.link/s7x9dYFkW0b
#running
https://static.toot.community/media_attachments/files/116/108/825/043/536/982/original/628703f7c53d88c2.jpeg

2026-02-14 19:51:54 UTC

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no idea 🤷 the official marathon distance is 42,2km, and this is half

2026-02-14 19:45:26 UTC

I ran my first half-marathon today, or so I thought. The official distance is 21,0975km. I stopped at 21km.
Felt pretty salty about that, but a significant milestone nonetheless.
#running

2026-02-07 11:19:31 UTC

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everyone has their own goals. Yours is a very important one too!
I need to do a fitness test every four weeks for my half marathon training. We unfortunately don’t really have parkruns here.

2026-02-07 10:43:40 UTC

Did a sub-25 5k today. Quite proud of myself for that one. #running

2026-02-05 14:21:26 UTC

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Strange. Want to send me the file over at support@toot.community so I can have a look?

2026-02-05 13:30:34 UTC

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Hey Richard. What is the size of the file you're uploading?

2026-02-03 07:32:49 UTC

Was greeted this morning by monitoring notifying me of crashing web containers throughout the night.
Root cause: distributed /media_proxy flood where clients request the entire srcset attribute as a URL (%20 + ,%20https:/.../small%20...w). At peak: 23,298 unique IPs per 5 min + lots of 499/503.
Mitigated via CrowdSec trigger on Traefik logs (path-based): https://github.com/toot-community/platform/commit/183ddfff3b70c8bf4b168cda52f84e6e3bf942de
This detection logic should apply to any WAF, though.
FYI #MastoAdmin

2026-01-03 12:31:13 UTC

This mornings snowy run yielded some great pictures. A vary rare sight in The Netherlands nowadays.
#running #snow
https://static.toot.community/media_attachments/files/115/831/174/277/848/362/original/6bffe656e3978169.jpeg
https://static.toot.community/media_attachments/files/115/831/174/559/167/240/original/8f6dfbe518b127f0.jpeg
https://static.toot.community/media_attachments/files/115/831/174/834/788/239/original/f152f8a3a9699933.jpeg
https://static.toot.community/media_attachments/files/115/831/175/239/220/460/original/2c8cfded242111a3.jpeg

2025-12-04 13:50:24 UTC

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I understand. AI is a tool, and I still value human-produced text above all else. I've actually come to enjoy the occasional grammar- or spelling mistake.. :-)
@npub1exx…6wz7
Curious about your prompts/workflow. Would you mind sharing them?

2025-12-04 13:37:24 UTC

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I've been feeding my DSW schedule and some life notes about sleep, schedule, stress, etc. into ChatGPT for a couple of weeks now. It's been working great for me, as it provides the necessary context and can suggest deviations from the plan when needed.
I showed it some runs and data, and it detected accumulated fatigue, indicated by a higher-than-usual HR at the same pace. It probably saved me from getting injured.

2025-12-04 13:14:54 UTC

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This would be great! Or a little questionnaire each morning while being sick, on which it can base its advice.
Also: The manflu is no joke. Glad you're feeling better!

2025-12-04 12:58:40 UTC

I spent a few days sick and noticed a flaw in the Daily Suggested Workouts algorithm by #Garmin:
When you're under the weather, but your HRV and sleep are still good, the algorithm continues to recommend intense workouts.
This can worsen your condition since each hard workout can temporarily weaken your immune system, pushing you further away from recovery.
A reminder to always use common sense and listen to your body.
#running

2025-12-01 08:36:39 UTC

Question for the #running community: What do you use to build or generate plans?
I'd appreciate any why, pros & cons.

2025-11-28 07:28:24 UTC

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valid question! I’m training for a half marathon in March, and January is a crucial training month.

2025-11-27 12:56:05 UTC

Debating a challenge to start the new year: going the first 30 days without a smartphone, in an effort to reset my unhealthy patterns with my phone.
The rules: a dumbphone for calling and perhaps a once-a-day sync with Garmin for running metrics.
I can think of some impractical consequences (WhatsApp, for instance), and I need to give it some thought about whether they're really necessary or if I should set up an alternative.
#NewYearsResolution

2025-11-10 12:47:14 UTC

Another interesting adventure from the life of a #MastoAdmin: "Where do all these requests come from?"
These spikes come and go on a fairly steady rhythm (each ~60 minutes). I found this to be interesting, so I investigated which URLs are being requested the most during these spikes.
Turns out: It's the emojis. I don't mind as they're being returned early by Varnish, but why so much? 2.5 million times per 24 hours seems like _a lot_.
Two red lines mark the Mastodon 4.5 upgrade.
https://static.toot.community/media_attachments/files/115/525/462/172/883/603/original/fed6e51a5a97dbd6.webp
https://static.toot.community/media_attachments/files/115/525/462/736/981/045/original/c04d4e994f94ad6b.webp
https://static.toot.community/media_attachments/files/115/525/468/647/093/510/original/1852da29642ebf6e.png

2025-11-09 08:56:42 UTC

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The print is done, and functions perfectly. Happy wife.
#Bambu #3DPrinting #P1S
https://static.toot.community/media_attachments/files/115/518/904/643/105/602/original/28ac600b20318977.mp4

2025-11-07 08:51:31 UTC

Started watching "Keuringsdienst van Waarde", a Dutch show on NPO. I learnt that in Canada, for Merino wool, they:
a) Cut off the skin on the sheep's behind, to prevent them from being eaten alive by flies because their feces will get stuck in the wool.. It's called Mulesing.
And b) It's our own fault because we're breeding them with lots and lots of skin flaps (more wool per sheep!), causing these unsanitary conditions in the first place.
Money really corrupts.
#Sheep #MerinoWool

2025-11-07 06:51:55 UTC

Doing a fairly large print today. It's a fruit washer, as per the wife's request. It'll take nearly 21 hours to complete, as it'll be switching between PLA/PETG throughout the print for easier support removal later on.
#Bambu #3DPrinting #P1S
https://static.toot.community/media_attachments/files/115/507/080/012/488/439/original/9990bc17e864008b.png

2025-11-05 05:35:13 UTC

Runners with Imposter Syndrome figuring out their Rate of Perceived Exertion:
Body: “You almost died!”
Mind: “You did complete it, so how hard could it be..”
#running

2025-10-21 17:46:36 UTC

The cluster just updated Mastodon to the latest v4.4.8 by itself with new security patches.
The update installed automatically without any downtime.
After dealing with all the moving parts and the complexity involved, I have to say, DevOps is pretty cool.
#tootcommunity

2025-09-24 06:29:03 UTC

Playing Christmas songs today just for @npub1r57…awtw and [@sister_ratched](https://toot.community/@sister_ratched )

2025-09-23 14:31:40 UTC

I have been tempted to put on Christmas music already.

2025-08-09 19:11:55 UTC

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yes. Block their user agent. We did: https://github.com/toot-community/platform/blob/main/manifests/applications/ingress-nginx/helm-values.yaml#L23

2025-07-29 13:31:46 UTC

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holy shi..

2025-07-29 12:53:01 UTC

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Flinke jongen! Hoe groot is je DB?

2025-07-29 12:38:44 UTC

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Je kan dan zelfs nog zo ver gaan als dynamisch op- en afschalen van servers indien je Kubernetes gebruikt. Je betaald immers per uur. 2/2

2025-07-29 12:30:28 UTC

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Thanks! Ik was inderdaad benieuwd. Storage vindt ik nog wel meevallen zelfs.
Ik heb het gevoel dat op infra gebied nog wel wat winst te behalen valt. Mogelijk kan ik daar nog wel wat in betekenen om een keer mee te denken als je dat interessant vindt.

2025-07-29 11:50:58 UTC

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I'm curious, do you have any specification of your in- and outflow?

2025-07-10 13:05:40 UTC

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still broken here. what's wrong?

2025-07-10 13:03:47 UTC

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your media still appears to be broken
https://static.toot.community/media_attachments/files/114/829/074/392/901/892/original/f91452a73b3993ec.png

2025-07-09 10:10:45 UTC

@npub1xyd…6xx0 and I have been working hard to create a new platform for the #tootcommunity Mastodon instance. It's completely open-source and built as Infrastructure as Code. The repository includes Kubernetes configurations, custom Helm charts, and OpenTofu code. The best part is that any changes made to this repository are instantly deployed to production.
We hope these resources will support and inspire the community.
Check it out here: https://github.com/toot-community/platform/
#Kubernetes #DevOps #MastoAdmin

2025-06-18 14:29:29 UTC

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it's basic networking under the hood. Have you tried 172.17.0.1?

2025-06-18 14:24:40 UTC

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then you should try host.docker.internal:5432

2025-06-18 14:23:45 UTC

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I'm not sure what you are trying to accomplish? Does the dashboard service need to connect to postgres on the host?

2025-06-18 14:21:07 UTC

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https://docs.docker.com/desktop/features/networking/#i-want-to-connect-from-a-container-to-a-service-on-the-host

2025-06-12 19:10:56 UTC

Just did Hyrox fitness test. I think I died a little. Completed it in. 37 minutes.
1. 1000m Run (outdoor or treadmill at 2% incline)
2. 50 Burpee Broad Jumps (90 cm)
3 100 Stationary Lunges (Fully Extended)
4. 1000m Row
5. 30 Push Up (Hand Release)
6. 100 Wallballs (6kg male / 4 kg female)
#Garmin #Hyrox
https://static.toot.community/media_attachments/files/114/671/973/320/536/202/original/981d5db29a4a11e9.jpeg

2025-06-06 08:09:39 UTC

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you're quite early, special plans today?

2025-06-04 12:50:49 UTC

#MastoAdmin strange situation:
#Meta is crawling one of our invite URLs approximately 7000 times daily.
Why? I have no clue.
https://static.toot.community/media_attachments/files/114/625/171/862/075/035/original/3571e400fbcd5eef.png

2025-05-23 05:34:30 UTC

I upgraded from the Logitech MX Master 3 to the 3S. I never realized how much I needed the silent clicking. I truly enjoy it.

2025-05-17 12:02:45 UTC

#Caturday submission: Grandma waking up from a sunny nap.
https://static.toot.community/media_attachments/files/114/523/066/171/235/485/original/11653a75cb7b3675.jpeg

2025-05-15 08:53:31 UTC

It's been my #NewYearsResolution to quit drinking caffeinated coffee and alcohol for the entire year. We've been well into the fifth month of this year, and I'm holding strong.
I had my fair share of cravings, but I'm really enjoying being energized and clearheaded all the time. My sleep quality has increased tenfold, and I no longer need to sit in quiet existence for an hour each morning before becoming a pleasant human being.

2025-05-12 10:27:19 UTC

#introduction
👋 Hey, I’m Jorijn Schrijvershof, a freelance DevOps engineer from the Netherlands.
Driven by open-source and automation, I work on projects from Kubernetes clusters to self-hosted tools.
Outside tech, I'm a sports enthusiast who is into running, Krav Maga, and weightlifting. Proud dad, husband, and cat dad to two Maine Coons. 🐾
I'll mostly post about #technology, #opensource, #running, and spending time outdoors, either by foot or on the #motorcycle. 🏍️
https://static.toot.community/media_attachments/files/114/494/374/538/986/478/original/65ddbe38effa8415.jpeg
https://static.toot.community/media_attachments/files/114/494/378/097/570/834/original/d9f8d597354dd9ab.jpeg