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Followers
50
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.
🧰 Free analysis for ultramagnetic
📊 Post engagement
2
Avg engagement / post
4%
Engagement vs followers
Nov 2022
On Mastodon since
🔥 Top post: 🚀 Higher-Kinded-J v0.4.4 is out — functional programming for Jav · 5 likes + reposts
📊 Activity & format
Posting cadence
0.55 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly text
Recent: 12 text · 0 image · 0 video.
Follower / following
0.2×
Follows 286 back. A more reciprocal / networked account.
Recent posts
View on Mastodon ↗
https://rockthejvm.com/articles/algebraic-data-types-in-java
RE: https://social.lansky.name/@hn50/116940807072542278
i have been waiting for someone to answer this. I had not realised that kurt vonnegut breakfast of champions inspired the claude logo. It all makes sense now why it hallucinates like …
🚀Higher-Kinded-J v0.4.8 is out 🚀
Better validation in Java. Stop returning just the first error. Collect them ALL, each tied to its field:
✅ NonEmptyList — total head/last/reduce, never throws
✅ Validated.fields() — accumulate up to…
Your typed errors shouldn't die at the network boundary. 🚂 …
Higher-Kinded-J 0.4.6 is out 🎉
Optic-driven request batching
The N+1 query — collapsed at the optic seam.
Swap the strategy in a traversal's modifyF and N backend loads become one batched call. The optic graph stays untouched.
▸ SafeFetch …
Higher-Kinded-J 0.4.2 ships EffectBoundary: write your Spring business logic once, interpret it three ways.
🏭 Production: boundary.runIO(program) → real IO, actuator metrics, HTTP response
🧪 Tests: TestBoundary.of(stub).run(program) → Id …
#Java EffectHandlers without the boilerplate?
In Higher-Kinded-J 0.4.1 — you define the what, the tooling generates the how.
You write this:
@EffectAlgebra
public sealed interface PaymentGatewayOp<A>
permits Authorise, Charge, Refund {…
What if your Java program was just... data?
Higher-Kinded-J v0.4.1 introduces Effect Handlers — where domain operations are records, workflows are data trees, and interpreters decide what happens.
Same program. Four interpretations:
✦ Prod…
What's new in Higher-Kinded-J v0.4.0:
• VStream: lazy pull-based streaming on virtual threads
• Resilience patterns: Circuit Breaker, Bulkhead, Retry, Saga
• WriterT transformer with MonadWriter/MonadReader/MonadState
• par(), traverse, se…
Higher-Kinded-J 0.3.6 released.
The new VStream is a lazy, pull-based streaming system built on virtual threads.
Compose data pipelines with map, flatMap, filter, parallel eval, error recovery, and reactive bridging. Full HKT type class s…
Higher-Kinded-J brings higher-kinded types and functional optics (lenses, prisms, traversals) to Java — but without compile-time code generation, users would drown in boilerplate. That's where JavaPoet comes in.
A single annotation like @G…
🐘 Community & instance
Home server
techhub.social
A tech server — its members and audience skew toward that niche, so expect a community-aligned, engaged following.
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 2 views per post.
📤Posts about 0.6× per week.
🕵️ Fake follower check
Estimated80/100
Excellent
Credibility score
97%
Real
Real audience
Low
Fake-follower risk
High
Data confidence
- Est. 97% real, active audience · Low fake-follower risk.
- Strong engagement (~4.0% of followers engage each post) — an active, real audience.
- Established account (3+ years old).
Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.
About
Lead Developer at Scott Logic by day, Architecturally curious, techno freak by night. Creator of Higher-Kinded-J https://higher-kinded-j.github.io
#higher-kinded-j #hkj #java #scala
Views are frequently my own
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
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