Clemens✓
🤝
Make a deal with Clemens
🔒 Paid proposals held safely in escrow — released only when the work's approved.
Followers
437
Account age
3 yrs
💰 Suggested sponsorship rate
$40 – $65 / sponsored post
Estimated from audience size & typical reach — every deal is negotiable and held in SocialDB escrow.
Known for
19 views
In October, I gave a talk about post-quantum #cryptography at the #OpenSSL Conference in Prague. Yesterday, the video dropped. If you're interested, head to https://www.youtube.com/watch?v=sXHEweoTj60!
12 views
I feel seen.
https://open.substack.com/pub/workchronicles/p/comic-how-to-be-more-productive-c33
11 views
Had a lovely evening while playing an experimental board game on post-quantum #cryptography with people from Tampere University, the OpenSSL Foundation and Cybernetica.
A fitting end for the 2025 #OpenSSL Conference.
11 views
Train intensifies.
#CrossBorderRail
📊 Post engagement
7
Avg engagement / post
1.6%
Engagement vs followers
Nov 2022
On Mastodon since
🔥 Top post: In October, I gave a talk about post-quantum #cryptography at th · 19 likes + reposts
📊 Activity & format
Posting cadence
0.47 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly images
Recent: 0 text · 9 image · 3 video.
Follower / following
3.1×
Follows 140 back. A more reciprocal / networked account.
Recent posts
View on Mastodon ↗▶
🔥 Top post
In October, I gave a talk about post-quantum #cryptography at the #OpenSSL Conference in Prague. Yesterday, the video dropped. If you're interested, head to https://www.youtube.com/watch?v=sXHEweoTj60!
I have the feeling my smartphone OS is trying to tell me something. OnePlus, never settle.
#slop #OnePlus #NeverSettle
I feel seen.
https://open.substack.com/pub/workchronicles/p/comic-how-to-be-more-productive-c33
▶
It's the time of the month where #AIcrawlers with outdated user agents hit our Trac instance again…
Thank you #CentOS Connect for the waffles! Looking forward to #FOSDEM tomorrow!
On a more positive note, my home now features a #vacuum robot running the open source #Valetudo cloud replacement. The guide on how to do that was surprisingly easy to follow. Some light soldering, a bit of flashing that's pretty similar t…
Successfully PoE-ified my Fritzbox, which now allows it to be neatly tucked away in a corner.
Note the very professional cable run 😂
I'm fine with that because this is temporary anyway and will be taken down once fiber is installed.
Had a lovely evening while playing an experimental board game on post-quantum #cryptography with people from Tampere University, the OpenSSL Foundation and Cybernetica.
A fitting end for the 2025 #OpenSSL Conference.
And that's it, the #OpenSSLCon25 in Prague has ended. Fantastic organization, many great talks, and some funny ones, too. Recordings should be available in a few weeks.
#Jujutsu version control in live use during a demo at #OpenSSLCon25 in Prague by @romen from Tampere University!
Cc @mullet.
OK, that's a new one: they replaced the carriage I was on. Everybody had to get off, everybody ahead of that carriage went for a ride along, they brought back two new carriages instead. Wild.
#CrossBorderRail
▶
Train intensifies.
#CrossBorderRail
🐘 Community & instance
Home server
chaos.social
Their home server on the fediverse — the instance a creator picks signals the community they belong to.
✅ Link-verified
Verified link
Proved ownership of a website linked on their profile — Mastodon's green-check verification, a real identity signal rather than a paid badge.
On Mastodon since
Nov 2022
Joined in the Twitter-exodus wave of late 2022 — part of the migration that made Mastodon a real destination.
💡 Facts
🗓️Joined Mastodon in 2022 — 3 years ago.
👁️Averages 7 views per post.
📤Posts about 0.5× per week.
🛡️ Audience credibility
76/100
Good
- Est. 85% real, active audience · Low fake-follower risk.
- Content engagement (~1.6% of followers) is around typical for Mastodon.
- Verified account.
- Established account (3+ years old).
Est. authentic audience
85%
Fake-follower risk
Low
Heuristic estimate from view-through, engagement vs size and recent growth — a screening signal, not a guarantee.
About
MacPorts Developer, PPL/A, Works at Red Hat on Cryptography
searchable
📸 Gallery
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
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12%
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