Ran these inside the module-folder:

npm install request

npm install valid-url

npm init -y

There seems to be some problem though:

# npm audit report

request *
Severity: moderate
Server-Side Request Forgery in Request - https://github.com/advisories/GHSA-p8p7-x288-28g6
Depends on vulnerable versions of tough-cookie
No fix available
node_modules/request

tough-cookie <4.1.3
Severity: moderate
tough-cookie Prototype Pollution vulnerability - https://github.com/advisories/GHSA-72xf-g2v4-qvf3
No fix available
node_modules/tough-cookie

2 moderate severity vulnerabilities

I have three local ics-calendars in my MM-Folder that ive adressed in my config, only calendar for “upcoming” bar shows up.

Config >

    modules: [

            {
                    module: 'MMM-CalendarExt',
                    position: "top_left",                           //anywhere. It is not related to real position of view
                    config: {                                       // Read below
                      system:{
                                    show: ['daily', 'upcoming', 'current'],
                                      locale: 'sv-SV',                      //when omitted, default value would be your system default locale by moment.js
                                      showEmptyView: 1,
                                      fullDayEventLocalize: 1,
                                      redrawInterval: 30*60*1000,   //minimum 60000
                                      useProfileConfig: 0,
                                      startProfile: ''
                    },
                      defaultView: {
                                      position: 'bottom_bar',
                                      positionOrder: -1,
                                      overflowRolling: 0,
                                      overflowHeight: 0,
                                      overflowDuration: 2,
                                      onlyStartingTime: 0,
                                      timeFormat: 'HH:mm',
                                      dateFormat: "MMM Do",
                                      fullDayEventDateFormat: "MMM Do",
                                      ellipsis: 0,
                                      limit:1,
                                      oneLineEvent:0,
                                      replaceTitle:[],
                                      classPattern:[],
                                      classPatternWhere:["title"],
                                      symbolPattern:[],
                                      symbolPatternWhere:["title"]
                    },
                      views: {

                                            weeks: {
                                                            showWeeks: 1,
                                                            weeksTitle: 'Veckor',
                                                            weeksFormat: 'wo',
                                                            weekdayFormat: 'dd',
                                                            titleFormat : 'MMM D',
                                                            overTitleFormat : 'MMM D',
                                                            counts: 2,
                                                   },
                                            daily: {
                                                        direction: 'row',
                                                        counts: 5,
                                                        titleFormat: "D",
                                                        overTitleFormat: "MMM D",
                                                        subtitleFormat: "ddd",
                                                    },
                                            weekly: {
                                                        direction: 'row',
                                                        counts: 4,
                                                        titleFormat: "wo",
                                                        overTitleFormat: "gggg wo",
                                                        subtitleFormat: "MMM Do",
                                                    },


                                            current: {
                                                        title: 'Aktuell',
                                                        useRelative: 1
                                                    },
                                            upcoming: {
                                                        title: 'Kommande',
                                                        useRelative: 1
                                                    },
                      },
                      defaultCalendar: {
                                              profiles: [],
                                              views: ['daily'],
                                              symbol: "",
                                              styleName: "",
                                              replaceTitle:[],
                                              classPattern: [],
                                              classPatternWhere: ["title"],
                                              symbolPattern: [],
                                              symbolPatternWhere: ["title"],
                                              maxEntries:50,
                                              maxDays:180,
                                              interval: 1800000,
                    },


                      calendars: [
                                              {
                                                name: "Namnsdagar",
                                                url: "webcal://localhost:8080/modules/ics/namedays.ics",
                                                profile: [],
                                                views: ['daily', 'current', 'upcoming'],
                                                styleName: "style1",
                                                symbol: 'us@fi',
                                                maxEntries: 50,
                                                maxDays:365,
                                                interval: 24*60*60*1000,
                                              },
                                              {
                                                name: "Helgdagar",
                                                url: "webcal://localhost:8080/modules/ics/se_holidays.ics",
                                                profile: [],
                                                views: ['daily', 'current', 'upcoming'],
                                                styleName: "style1",
                                                symbol: 'se@fi',
                                                maxEntries: 50,
                                                maxDays:365,
                                                interval: 24*60*60*1000,
                                              },
                                              {
                                                name: "Ansvarsvecka",
                                                url: "webcal://localhost:8080/modules/ics/Ansvarsvecka.ics",
                                                profile: [],
                                                views: ['daily', 'current', 'upcoming'],
                                                styleName: "style1",
                                                symbol: 'se@fi',
                                                maxEntries: 50,
                                                maxDays:365,
                                                interval: 24*60*60*1000,
                                              },
                                    ],

                      }
                    },

           {
                    module: "calendar",
                    header: "Helgdagar",
                    position: "top_left",
                    config: {
                            calendars: [
                                    {
                                            fetchInterval: 7 * 24 * 60 * 60 * 1000,
                                            symbol: "calendar-check",
                                            url: "webcal://localhost:8080/modules/ics/se_holidays.ics"
                                    }
                            ]
                    }
            },

Ran these inside the module-folder:

npm install request

npm install valid-url

npm init -y

There seems to be some problem though:

# npm audit report

request *
Severity: moderate
Server-Side Request Forgery in Request - https://github.com/advisories/GHSA-p8p7-x288-28g6
Depends on vulnerable versions of tough-cookie
No fix available
node_modules/request

tough-cookie <4.1.3
Severity: moderate
tough-cookie Prototype Pollution vulnerability - https://github.com/advisories/GHSA-72xf-g2v4-qvf3
No fix available
node_modules/tough-cookie

2 moderate severity vulnerabilities