diff --git a/LICENSE b/LICENSE
index ad1fec2..1ba4faf 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2024 Florian Hülsmann <fh@cbix.de>
+Copyright (c) 2024-2025 Florian Hülsmann <fh@cbix.de>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/meffis.go b/meffis.go
new file mode 100644
index 0000000..2e19fe4
--- /dev/null
+++ b/meffis.go
@@ -0,0 +1,129 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"html"
+	"io"
+	"net/http"
+	"regexp"
+	"strings"
+	"time"
+
+	ics "github.com/arran4/golang-ical"
+)
+
+func init() {
+	RegisterAdapter("meffis", meffisUrl, "Shared creative space in Aachen", meffisAdapter)
+}
+
+type meffisTextItem struct {
+	Rendered string `json:"rendered"`
+}
+
+type meffisMeta struct {
+	StartDate string `json:"_piecal_start_date"`
+	EndDate   string `json:"_piecal_end_date"`
+	Color     string `json:"_piecal_color"`
+	IsEvent   bool   `json:"_piecal_is_event"`
+	IsAllDay  bool   `json:"_piecal_is_allday"`
+}
+
+type meffisEvent struct {
+	Id       int64          `json:"id"`
+	Link     string         `json:"link"`
+	Meta     meffisMeta     `json:"meta"`
+	Modified string         `json:"modified"`
+	Title    meffisTextItem `json:"title"`
+	Content  meffisTextItem `json:"content"`
+}
+
+const (
+	meffisUrl         = "https://www.meffis.org/"
+	meffisSrc         = "https://www.meffis.org/wp-json/wp/v2/posts?per_page=100"
+	meffisLocalFormat = "2006-01-02T15:04:05"
+)
+
+var (
+	meffisTZ, _     = time.LoadLocation("Europe/Berlin")
+	meffisStripTags = regexp.MustCompile(`<.*?>`)
+	meffisJunk      = "[add-to-calendar"
+)
+
+func (t meffisTextItem) PlainText() string {
+	str := t.Rendered
+	if junk := strings.Index(str, meffisJunk); junk != -1 {
+		str = str[:junk]
+	}
+	return html.UnescapeString(meffisStripTags.ReplaceAllString(str, ""))
+}
+
+func (e meffisEvent) ModifiedAt() time.Time {
+	t, _ := time.ParseInLocation(meffisLocalFormat, e.Modified, meffisTZ)
+	return t
+}
+
+func (e meffisEvent) StartTime() time.Time {
+	t, _ := time.ParseInLocation(meffisLocalFormat, e.Meta.StartDate, meffisTZ)
+	return t
+}
+
+func (e meffisEvent) EndTime() time.Time {
+	t, _ := time.ParseInLocation(meffisLocalFormat, e.Meta.EndDate, meffisTZ)
+	return t
+}
+
+func meffisAdapter(w io.Writer) error {
+	now := time.Now()
+	res, err := http.Get(meffisSrc)
+	if err != nil {
+		return err
+	}
+	defer res.Body.Close()
+
+	var events []meffisEvent
+	err = json.NewDecoder(res.Body).Decode(&events)
+	if err != nil {
+		return err
+	}
+
+	cal := ics.NewCalendarFor("github.com/cbix/ics")
+	cal.SetName("meffi.s Aachen")
+	cal.SetColor("#29603e")
+	cal.SetUrl(meffisUrl)
+	cal.SetTimezoneId("Europe/Berlin")
+	lastModified := time.Time{}
+	for _, ev := range events {
+		if !ev.Meta.IsEvent {
+			continue
+		}
+		event := cal.AddEvent(fmt.Sprintf("event-%d@meffis.org", ev.Id))
+		event.SetDtStampTime(now)
+		event.SetSummary(ev.Title.PlainText())
+		event.SetDescription(ev.Content.PlainText())
+		if ev.Meta.Color != "" {
+			event.SetColor(ev.Meta.Color)
+		}
+		event.SetLocation("meffi.s Aachen")
+		if ev.Meta.IsAllDay {
+			event.SetAllDayStartAt(ev.StartTime())
+			event.SetAllDayEndAt(ev.EndTime())
+		} else {
+			if ev.EndTime().After(ev.StartTime()) {
+				event.SetEndAt(ev.EndTime())
+				event.SetStartAt(ev.StartTime())
+			}
+		}
+		event.SetURL(ev.Link)
+		modifiedAt := ev.ModifiedAt()
+		event.SetCreatedTime(modifiedAt)
+		event.SetModifiedAt(modifiedAt)
+		if modifiedAt.After(lastModified) {
+			lastModified = modifiedAt
+		}
+	}
+	if !lastModified.IsZero() {
+		cal.SetLastModified(lastModified)
+	}
+	return cal.SerializeTo(w)
+}